Patent US1049478A successfully refreshed from Google Patents.
Patent US4085074A successfully refreshed from Google Patents.
US4085074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-mixed catalyzed vinyl acetate polymer adhesive composition
Assignee: National Casein of New Jersey
•
Filing: 1976-03-29
•
Granted: 1978-04-18
•
Expires: 1996-03-29
Abstract
Abstract A pre-mixed adhesive composition comprised of a vinyl acetate polymer emulsion including a cross-linking catalyst and a cross-linking inhibitor providing a good cured water resistant Type II bond and extended shelf life so that the adhesive composition will not gel over an extended period of time and will therefore be usable for direct gluing application to semi-porous and porous substrates.
Inventors
- 👤 Ming Cho Woo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:51
CPC Classifications
C; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C08; C08K; C08K3/00; C08K3/16; C08K5/00; C08K5/16; C08K5/17; C08L; C08L29/00; C08L29/02; C08L29/04; C08L31/00; C08L31/02; C08L31/04; C09J151/00; C09J151/003; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/28; C08L2666/36; C08L2666/44; C08L2666/54; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12188; Y10T428/12194; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31877; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
183 words
A pre-mixed catalyzed adhesive composition comprised of (a) an aqueous cross-linkable vinyl acetate resin emulsion including polymerized vinyl acetate, in which the polymerized vinyl acetate is made from a monomer mixture of 80-97% vinyl acetate and 3-20% of a mixture of an alkyl ester of an acid selected from the class consisting of acrylic acid and methacrylic acid and an N-alkylol derivative of an amide of an alpha, beta-unsaturated carboxylic acid in an aqueous medium containing about 3-6% by weight of a hydrocolloid selected from the class consisting of polyvinyl alcohol, hydroxyethylcellulose and carboxymethylcellulose, by weight of the monomer mixture, (b) an acidic metal salt cross-linking catalyst selected from the class consisting of aluminum chloride, aluminum nitrate, chromic chloride and chromic nitrate in an amount of about 0.0032 to 0.025 gram equivalents per 100 grams of the resin emulsion, and (c) a cross-linking inhibitor selected from the class consisting of ammonia, alkyl amines and alkylol amines wherein the mole ratio of the cross-linking inhibitor to catalyst ranges from a minimum of about 0.1 to 0.2 to a maximum of about 0.7 to 1.7.
Claim 2
Dependent Claim
183 words
A pre-mixed catalyzed adhesive composition comprised of (a) an aqueous cross-linkable vinyl acetate resin emulsion including polymerized vinyl acetate, in which the polymerized vinyl acetate is made from a monomer mixture of 80-97% vinyl acetate and 3-20% of a mixture of an alkyl ester of an acid selected from the class consisting of acrylic acid and methacrylic acid and an N-alkylol derivative of an amide of an alpha, beta-unsaturated carboxylic acid in an aqueous medium containing about 3-6% by weight of a hydrocolloid selected from the class consisting of polyvinyl alcohol, hydroxyethylcellulose and carboxymethylcellulose, by weight of the monomer mixture, (b) an acidic metal salt cross-linking catalyst selected from the class consisting of aluminum chloride, aluminum nitrate, chromic chloride and chromic nitrate in an amount of about 0.0032 to 0.025 gram equivalents per 100 grams of the resin emulsion, and (c) a cross-linking inhibitor selected from the class consisting of ammonia, alkyl amines and alkylol amines wherein the mole ratio of the cross-linking inhibitor to catalyst ranges from a minimum of about 0.1 to 0.2 to a maximum of about 0.7 to 1.7.
Claim 3
Dependent Claim
41 words
The adhesive composition of claim 1 in which the polymerized vinyl acetate is made from a monomer mixture of about 90-98% vinyl acetate and about 2-10% of an N-alkylol derivative of an amide of an alpha, beta-unsaturated carboxylic acid, by weight.
Claim 4
Dependent Claim
22 words
The adhesive composition of claim 1 wherein the N-alkylol derivative of an amide of an alpha, beta-unsaturated carboxylic acid is N-methylol acrylamide.
Claim 5
Dependent Claim
58 words
The adhesive composition of claim 1 wherein the mole ratio of the inhibitor to the catalyst is sufficient to at least increase the shelf life of the resin emulsion plus catalyst alone, the adhesive composition when applied to substrates providing a cured water resistant bond of at least 50 psi when subjected to a one-half hour boil test.
Claim 6
Dependent Claim
32 words
The adhesive composition of claim 1 wherein the alkyl ester of acrylic acid is ethyl acrylate and the N-alkylol derivative of an amide of an alpha, beta-unsaturated carboxylic acid is N-methylol acrylamide.
Claim 7
Dependent Claim
31 words
The adhesive composition of claim 5 wherein the catalyst is aluminum chloride in an amount of about 0.0032 to 0.025 gram equivalents of AlCl 3 per 100 grams of resin emulsion.
Claim 8
Dependent Claim
12 words
The adhesive composition of claim 6 wherein the cross-linking inhibitor is triethanolamine.
Claim 9
Dependent Claim
12 words
The adhesive composition of claim 7 wherein the hydrocolloid is polyvinyl alcohol.
Claim 10
Dependent Claim
98 words
A pre-mixed catalyzed adhesive composition comprised of (a) an aqueous cross-linkable vinyl acetate emulsion of a terpolymer made by polymerizing a monomer mixture of about 90-92% vinyl acetate, about 4-6% ethyl acrylate and about 2-5% N-methylol acrylamide, in an aqueous medium containing about 3-6% of polyvinyl alcohol by weight of the monomer mixture, (b) an acidic catalyst of about 0.0032 to 0.025 gram equivalents of aluminum chloride per 100 grams of the resin emulsion and (c) a cross-linking inhibitor of triethanolamine, in a mole ratio of about 0.1-0.2 to about 0.7 to 1.7 of triethanolamine to aluminum chloride.
Claim 11
Dependent Claim
98 words
A pre-mixed catalyzed adhesive composition comprised of (a) an aqueous cross-linkable vinyl acetate emulsion of a terpolymer made by polymerizing a monomer mixture of about 90-92% vinyl acetate, about 4-6% ethyl acrylate and about 2-5% N-methylol acrylamide, in an aqueous medium containing about 3-6% of polyvinyl alcohol by weight of the monomer mixture, (b) an acidic catalyst of about 0.0032 to 0.025 gram equivalents of aluminum chloride per 100 grams of the resin emulsion and (c) a cross-linking inhibitor of triethanolamine, in a mole ratio of about 0.1-0.2 to about 0.7 to 1.7 of triethanolamine to aluminum chloride.
Claim 12
Dependent Claim
18 words
A structure comprising two substrates bonded together by the adhesive composition of claim 1 in a cured condition.
Claim 13
Dependent Claim
18 words
A structure comprising two substrates bonded together by the adhesive composition of claim 2 in a cured condition.
Claim 14
Dependent Claim
18 words
A structure comprising two substrates bonded together by the adhesive composition of claim 4 in a cured condition.
Claim 15
Dependent Claim
18 words
A structure comprising two substrates bonded together by the adhesive composition of claim 5 in a cured condition.
Claim 16
Dependent Claim
18 words
A structure comprising two substrates bonded together by the adhesive composition of claim 6 in a cured condition.
Claim 17
Dependent Claim
18 words
A structure comprising two substrates bonded together by the adhesive composition of claim 7 in a cured condition.
Claim 18
Dependent Claim
18 words
A structure comprising two substrates bonded together by the adhesive composition of claim 9 in a cured condition.
Claim 19
Dependent Claim
22 words
The adhesive composition of claim 1 wherein the N-alkylol derivative of an amide of an alpha, beta-unsaturated carboxylic acid is N-methylol acrylamide.
Claim 20
Dependent Claim
17 words
The adhesive composition of claim 1 wherein the catalyst is aluminum chloride and the inhibitor is triethanolamine.
Claim 21
Dependent Claim
12 words
The adhesive composition of claim 1 wherein the hydrocolloid is polyvinyl alcohol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |