| HS Code | 977352 |
| Product Name | Resyn 1072 |
| Product Type | Vinyl acetate-ethylene copolymer emulsion |
| Appearance | Milky white liquid |
| Total Solids Content | 55% ± 1% |
| Brookfield Viscosity | 1500 cP at 25°C |
| Ph | 5.0 ± 0.5 |
| Particle Size | Approximately 0.5–1.0 micron |
| Density | 1.07 g/cm3 |
| Minimum Film Formation Temperature | 5°C |
| Glass Transition Temperature | 0°C |
| Stabilizer | Polyvinyl alcohol |
| Primary Application | Adhesive and coating binder |
As an accredited Resyn 1072 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Resyn 1072 is supplied in 25 kg multiwall paper bags with polyethylene liner, palletized and wrapped for safe transport. |
| Container Loading (20′ FCL) | Resyn 1072 is loaded into a 20-foot FCL container, secured, labeled, and ventilation checked to ensure safe transport. |
| Shipping | Resyn 1072, a vinyl acetate-ethylene copolymer emulsion, ships as a non-hazardous liquid. Pack in drums, totes, or tankers with airtight seals. Protect from freezing below 40°F and excessive heat. Transport upright, secure loads, and label as non-flammable. Use standard industrial hygiene practices during handling. |
| Storage | Store Resyn 1072 in its original, tightly sealed container in a cool, dry, well-ventilated area. Maintain temperatures between 40–90°F (4–32°C) and protect from freezing, direct sunlight, and heat sources. Keep away from incompatible materials and food items. Rotate stock to use within the manufacturer’s shelf life. Clean spills promptly and observe proper labeling. |
| Shelf Life | Shelf life is typically 24 months from manufacture when stored in original containers at moderate temperatures. |
When Resyn 1072 is incorporated into anhydrous aerosol concentrates, the polymer solids addition is maintained at 2.0–4.5 wt% of the concentrate prior to propellant charging. The concentrate is mixed in a 316L stainless steel closed vessel under a nitrogen blanket; jacket temperature is held below 35 °C because the ethanol flash point is 13 °C. Dissolution is complete when a clear single phase is observed at 25 °C after 30 min of low-shear stirring at 60–80 rpm. Residual water is kept below 0.15 wt% by pre-drying ethanol over molecular sieves or by using anhydrous denatured alcohol; exceeding this threshold accelerates tinplate can corrosion at the crimp area in unlined steel aerosols. The concentrate is filtered through a 10 μm polypropylene cartridge and transferred to a rotary aerosol filler. Aerosol valves are crimped at a collet depth of 1.80–1.95 mm, and dimethyl ether is charged at 30–40 wt% of the total fill. Terminal formats produced under this specification include classic fine-mist aerosol hairsprays, volumizing aerosol sprays, and aerosol heat-protection sprays. Compliance documentation for export batches must include Regulation (EC) No 1223/2009 Article 17 product information file entries, ISO 22716:2007 clause 4.15 batch release records for raw material identity, and Directive 75/324/EEC aerosol dispenser marking. The anhydrous aerosol system has an operational boundary: adding more than 8.0 wt% of triethyl citrate or similar plasticizer necessary for flexible films can suppress aerosol spray break-up and increase particle size; therefore plasticizer is limited to 0.3–1.2 wt% when dimethyl ether content is below 35 wt%.
In pump spray formats, water can replace a portion of the ethanol only when the carboxyl groups of Resyn 1072 are neutralized to 80–90 mole% with 2-amino-2-methyl-1-propanol or triethanolamine. The polymer solids concentration in the final pump spray is held between 1.5 wt% and 3.0 wt%; above 3.5 wt% the high-shear viscosity rises above the pressure drop capacity of standard 0.15 mL pump actuators and the spray pattern becomes intermittent. Water content is limited to 20–45 wt% because unneutralized acid residues above 10 mole% produce film whitening when the spray droplets coalesce on hair fibers at relative humidity above 70%. The production sequence first mixes the neutralizer into the ethanol phase at 20–25 °C, then adds Resyn 1072 under a 1,000–1,500 rpm disperser; the resulting hydroalcoholic solution is stirred for 15 min and adjusted to pH 6.8–7.2. The batch is filtered through a 5 μm nylon membrane and filled into HDPE or PET pump bottles at 20–25 °C. Laser diffraction spray testing is used to hold Dv90 below 80 μm at the actuator exit. Terminal products include low-VOC pump hairsprays, curl activation sprays, and shine-enhancing style refreshers. Regulatory compliance for this format requires Regulation (EC) No 1223/2009 Article 10 safety assessment documentation, ISO 22716:2007 clause 6.6 cleaning validation for water-bearing lines, and finished product stability testing under 25 °C/60% RH and 40 °C/75% RH for at least 12 weeks. An incompatibility exists with zinc-based anti-dandruff actives in the same water phase; the free carboxyl groups can bind zinc and form a visible precipitate within 48 h.
Styling gel systems add a further constraint: the ethanol in Resyn 1072 must be introduced after the carbomer network is fully hydrated and neutralized because direct contact between the acidic carbomer dispersion and the acidic polymer solution causes local coagulation. The recommended Resyn 1072 solids addition is 0.8–2.0 wt% of the finished gel; at 2.5 wt% the dried film becomes brittle and the comb-out behavior fails at the 50% curl retention endpoint under 90% RH after 6 h. The manufacturing process uses a vacuum mixing vessel at −0.08 MPa; deionized water and a neutralized carbomer are mixed at 25 °C with a scraped-surface agitator at 15–25 rpm. Resyn 1072 is pre-neutralized to 70–80 mole% and added as a filtered ethanol solution through a side port. The batch is then homogenized at 3,000 rpm for 5 min to eliminate gel streaking. Terminal product types include clear styling gels, moisturizing hair jellies, and edge-control gels filled into tubes or jars at 25–30 °C. Compliance documentation follows ISO 22716:2007 clause 5.4 for process vessels and Regulation (EC) No 1223/2009 Article 17 product information file requirements. The formulation boundary is that the ethanol content from the Resyn 1072 solution can depress the gel viscosity by 8–15%; therefore batch viscosity is measured with a Brookfield RV spindle #6 at 10 rpm and adjusted with additional carbomer only before polymer addition.
Aerosol mousse emulsions containing Resyn 1072 require a pre-emulsion of the polymer solution with a nonionic emulsifier system having an HLB between 13 and 15, because the ethanol in the polymer solution shifts the effective HLB of the water phase and destabilizes the foam cell interface. The polymer solids addition is 1.0–3.5 wt% of the finished emulsion, and the hydrocarbon propellant A-46 is charged at 6.0–10.0 wt%. The production sequence heats the oil phase to 70 °C and the water phase to 70 °C, homogenizes the emulsion at 3,500 rpm for 10 min, then cools to 25 °C before adding the ethanol-based polymer solution under gentle anchor agitation. The bulk emulsion is filled into epoxy-lined aluminium aerosol cans; after valve crimping, propellant is pressure-charged through the valve at 3–5 bar. Each filled can is leak-tested in a 54 °C water bath for 2 min. Terminal formats include curl-defining aerosol mousses, volume-building mousses, and conditioning styling foams. Compliance requirements cover Directive 75/324/EEC aerosol dispenser marking, Regulation (EC) No 1223/2009 Article 17, and ISO 22716:2007 clause 4.15. An operational limit is the ethanol content of the polymer solution: adding it before the emulsion cools below 30 °C causes foam drainage time to shorten from 180 s to below 90 s in a standardized drainage test at 25 °C.
In wax and pomade formats, Resyn 1072 acts as a hard-film modifier rather than the primary structurant. The polymer solids are limited to 1.0–2.5 wt% of the total formula, and the 50% ethanol solution is added to the fragrance solvent phase at 20–25 °C before injection into the molten oil phase at 80–85 °C. Direct addition of the cold polymer solution into the full molten wax mass causes localized solidification of microcrystalline wax and produces visible white specks in the finished paste. The manufacturing vessel is a jacketed stainless steel kettle with a double-motion agitator; after the polymer solution is incorporated, the batch is cooled at 0.5 °C/min to 35 °C and then filled into wide-mouth jars at 30–35 °C. Terminal product types include hair waxes, clay pomades, and fiber pastes. Compliance documentation is prepared under Regulation (EC) No 1223/2009 Article 10 safety assessment and ISO 22716:2007 clause 6.6; for REACH registrations, the ethanol solution is reported according to Regulation (EC) No 1907/2006 Annex VI when export volume triggers registration obligations. This application has a narrow thermal boundary: holding the batch above 90 °C for more than 20 min after polymer addition darkens the ethanol phase and reduces the final paste gloss from 85 GU to below 70 GU at 60° geometry.
Temporary hair color sprays use Resyn 1072 as the film-forming matrix for direct dyes and pearlescent pigments at 1.5–3.0 wt% polymer solids. The polymer solution is pre-neutralized to 60–70 mole% only, because higher neutralization lowers the film’s water resistance and causes dye transfer to collars under high-humidity conditions. Pigment dispersion is carried out separately in a bead mill with 0.4–0.6 mm zirconia beads; the mill base is passed three times until a Hegman gauge reading of 7 is reached, then let down with the neutralized polymer solution. The final spray concentrate is filtered through a 10 μm polypropylene filter and filled into aluminium or tinplate aerosol cans; propellant is charged at 25–35 wt%. Terminal product types include temporary hair color sprays, glitter hair sprays, and root touch-up sprays. Regulatory compliance requires that all colorants appear in Regulation (EC) No 1223/2009 Annex IV positive list, that the product information file meets Article 17, and that US-bound batches use only color additives listed in 21 CFR Part 74 where applicable. A critical process limit is that the milling temperature must remain below 40 °C because the ethanol-based polymer solution preferentially wets the pigment surface above 45 °C, which reduces hue strength by 5–10% compared with the cold let-down control.
| Application format | Jurisdiction | Standard or regulation | Batch release record |
|---|---|---|---|
| Aerosol hairspray | EU | Regulation (EC) No 1223/2009 Article 17; Directive 75/324/EEC | Residual water < 0.15 wt%; crimp depth 1.80–1.95 mm |
| Pump spray | EU/Global | ISO 22716:2007 clause 6.6; Regulation (EC) No 1223/2009 Article 10 | pH 6.8–7.2; filtration integrity 5 μm |
| Styling gel | EU/Global | ISO 22716:2007 clause 5.4; Regulation (EC) No 1223/2009 Article 17 | Brookfield RV #6, 10 rpm, 25 °C |
| Aerosol mousse | EU | Directive 75/324/EEC; ISO 22716:2007 clause 4.15 | Leak test 54 °C for 2 min |
| Hair wax/pomade | EU/Global | Regulation (EC) No 1223/2009 Article 10; ISO 22716:2007 clause 6.6 | Cooling rate 0.5 °C/min; fill at 30–35 °C |
| Temporary color spray | EU/US | Regulation (EC) No 1223/2009 Annex IV; 21 CFR Part 74 | Hegman gauge 7; bead mill passes 3 |
Competitive Resyn 1072 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Resyn 1072 is a polyvinyl acetate homopolymer resin supplied as dry, off-white granules with a published non-volatile matter minimum of 99.0% when tested under ASTM D1259. The product is identified by CAS 9003-20-7 and is differentiated within its chemical class by a controlled solution viscosity band rather than by a single molecular-weight figure. A 25 wt% solution in ethyl acetate at 25 °C is typically specified at 12–18 mPa·s using a Brookfield rotational viscometer; this narrow band allows reproducible letdown in solvent-based adhesives without the high-solids yield stress observed in higher-molecular-weight vinyl acetate polymers. The dried resin exhibits a glass transition temperature in the 28–30 °C range by differential scanning calorimetry under ASTM E1356-14, placing Resyn 1072 above most vinyl acetate-ethylene copolymer dispersions and below solution acrylics that require external plasticization for ambient film formation. Because trade names are reused across different suppliers, the grade treated here is the solid vinyl acetate homopolymer with CAS 9003-20-7; the lot certificate should be confirmed against the specific regional distribution.
On production-scale mixing lines, Resyn 1072 is commonly dissolved in a jacketed dissolver fitted with a low-speed anchor agitator and a separate rotor–stator head. The granules are charged slowly into an ethyl acetate–methyl ethyl ketone blend maintained at 20–25 °C; addition rates above 5 kg/min on a 1,500 L batch have produced localized viscosity stratification and shaft deflection when the anchor rotates at 40 Hz. A nitrogen pad is retained during dissolution because ketone and ester vapours can approach flammable concentration at solvent temperatures above 23 °C. The final solution is filtered through a 25 µm bag and a 10 µm cartridge to remove undissolved fines.
Polyvinyl acetate homopolymer contains a vinyl acetate repeat unit with an acetyl content of approximately 50 wt% by repeat-unit stoichiometry. The resin is non-carboxylated; its acid number is typically below 0.5 mg KOH/g under ASTM D974-14e2. The absence of acid functionality limits interaction with basic pigments and with aluminium substrates, while the acetate groups provide polar adhesion to paper, cellulose acetate, and corona-treated polyester. Molecular architecture is controlled through chain-transfer regulation; solution viscosity is used as the primary lot-acceptance surrogate because absolute weight-average molecular weight determined by size-exclusion chromatography is not specified for this grade. Under alkaline conditions above pH 8.5, acetate hydrolysis can generate polyvinyl alcohol repeat units and increase toluene-phase turbidity when the material is stored in contact with aqueous caustic.
In high-solids gravure ink formulations, Resyn 1072 is processed at 30–35% non-volatile matter in a solvent blend of ethyl acetate and isopropanol. The resin contributes to pigment wetting and solvent-release behaviour, but it is not a grinding vehicle for high-viscosity dispersions because its film hardness increases rapidly with solvent loss. A three-roll mill may be used for pigment predispersion at 40–45 °C roll temperature before letdown; final viscosity is adjusted to 18–25 s on a Zahn cup #2.
Resyn 1072 dissolves readily in ethyl acetate, methyl ethyl ketone, and acetone; it is insoluble or only partly soluble in ethanol, isopropanol, and aliphatic hydrocarbons. Solubility limits are therefore set by the Hansen solubility-parameter window for vinyl acetate repeat units, and solvent blends containing more than 20 wt% aliphatic hydrocarbon may show phase separation. Drying rate is governed by solvent retention rather than polymer crosslinking. A 25 wt% solution coated as a 50 µm wet film on polyester reaches tack-free surface condition in 20–30 s under forced air at 40 °C; residual ethyl acetate after 60 s is typically below 0.5 mg/m² when measured by headspace gas chromatography under ISO 11890-2. Because the glass transition temperature is 28–30 °C, the dried film remains glassy at ambient temperature and requires external plasticizer or higher substrate temperature for flexible packaging lamination. Drying from high-boiling glycol ethers is not recommended because film blocking occurs at stack temperatures above 35 °C.
Compared with a vinyl acetate-ethylene copolymer dispersion having a glass transition below -10 °C, Resyn 1072 provides a harder, higher-modulus adhesive layer after drying. The heat-seal onset of a 2.5 g/m² dry adhesive film is typically reported in the 70–80 °C range on a laboratory hot-tack instrument using 1.0 N/mm seal pressure and 0.5 s dwell; this is higher than most VAE dispersions and lower than a solvent acrylic with a 50 °C glass transition. The property difference is most visible on oriented polypropylene-to-coated paper laminates run at 120 m/min; solvent acrylics may retain gloss but require greater dissolution solvent load, while VAE systems can generate acceptable flexibility but may exhibit lower thermal resistance. Table 1 summarises comparative screening data.
Table 1. Comparative property data for Resyn 1072, a lower-viscosity polyvinyl acetate homopolymer, and a vinyl acetate-ethylene copolymer dispersion. Published data for this specific configuration is limited; values are typical internal screening data.
| Property | Test method | Resyn 1072 | Lower-viscosity PVAc | VAE dispersion |
|---|---|---|---|---|
| Glass transition temperature | ASTM E1356-14 | 28–30 °C | 25–28 °C | -15–0 °C |
| Brookfield viscosity at 25 wt% in ethyl acetate | ISO 2555:2018 | 12–18 mPa·s | 6–10 mPa·s | Not applicable |
| Dry film tensile strength | ASTM D638-14 | 15–20 MPa | 10–13 MPa | 2–5 MPa |
| Elongation at break | ASTM D638-14 | 5–10% | 3–6% | 400–800% |
| Heat-seal onset | Internal hot-tack method | 70–80 °C | 65–72 °C | 55–65 °C |
In packaging-grade laminating adhesives, batch-to-batch viscosity drift is controlled by adding Resyn 1072 to the solvent blend before adding tackifier resins such as pentaerythritol ester of rosin. When the tackifier is introduced at 15–20 wt% of total non-volatile matter, the resulting adhesive achieves peel strength on polyethylene of 2.0–3.0 N/15 mm under ASTM D903-17 peel testing. Failure mode on a laminating line operating at 80 °C nip temperature and 120 m/min line speed is typically adhesive transfer rather than substrate tear, indicating that the resin film itself is the stress-limiting component. The addition of more than 10 phr of liquid plasticizer lowers peel strength and increases open time, which is useful only where high film flexibility is required.
High-solids solutions of Resyn 1072 become shear-thinning as non-volatile matter exceeds 40 wt%. At 35 wt% in ethyl acetate, the Brookfield viscosity at 20 °C is approximately 200–300 mPa·s; increasing solids to 45 wt% raises viscosity to 1,500–2,500 mPa·s under low shear, but a cone-and-plate viscometer at 100 s−1 records 400–600 mPa·s because of shear-rate dependence. Gravure coating at 30–35 wt% solids requires no additional rheology modifier; above 40 wt%, the addition of fumed silica at 0.5 wt% can reduce film levelling defects, but it also increases high-shear viscosity and reduces transfer efficiency. Solvent release is controlled by the ratio of ethyl acetate to isopropanol; higher isopropanol content above 20 wt% extends open time but increases residual alcohol in the dried film.
Extended aromatic content in the solvent blend improves flow and levelling of Resyn 1072 coatings but delays solvent release and increases retained high-boiling solvent. At 10 wt% added toluene, the dry-gloss level on glass measured under ISO 2813:2014 at 60° geometry is approximately 85–90 gloss units; at 20 wt% toluene, the gloss increases to 92–95 gloss units but residual solvent must be controlled by increasing oven residence time. Slower solvent release can reduce surface roughness but may also raise blocking tendency in stack rewind at web temperatures above 35 °C.
Compliance documentation for Resyn 1072 is limited to the chemical class known as vinyl acetate homopolymer. In food-contact adhesive applications, the component may be evaluated under FDA 21 CFR 175.105 for adhesives and under 21 CFR 175.300 where a resinous coating is applied. It is the responsibility of the converting operation to verify migration limits against the applicable food-type and temperature conditions because the polymer itself does not carry independent organoleptic compliance. Table 2 lists the primary standard designations applied to this product class.
Table 2. Compliance and test method matrix.
| Standard or regulation | Application | Comment |
|---|---|---|
| FDA 21 CFR 175.105 | Adhesives for food packaging | Subject to end-use migration testing |
| FDA 21 CFR 175.300 | Resinous and polymeric coatings | Limit specified by coating weight and food type |
| REACH Regulation (EC) No 1907/2006 | Polymer registration/exemption | No monomer-specific restriction triggered for vinyl acetate |
| RoHS Directive 2011/65/EU | Heavy metal restrictions | Determined by XRF screening per IEC 62321-5:2013 |
| ASTM D638-14 | Tensile properties of plastic films | Dried film specimen, type V |
| ISO 1183-1:2019 | Density | Immersion method for solid resin |
Storage in original sealed containers is recommended below 30 °C and below 60% relative humidity. Granules should be pre-dried at 40 °C if moisture content exceeds 0.5 wt%, because free water in ester solvent solution can raise haze and reduce film clarity. Combination with strong alkaline additives or reactive amines should be avoided; alkaline hydrolysis of acetate groups can generate polyvinyl alcohol units and increase film water sensitivity. Ammonia-containing flexographic inks should be tested for pH stability at high solvent dilution because pH above 8.5 can produce haze in the dried film over warehouse storage.
