Patent US4668730A successfully refreshed from Google Patents.
US4668730A
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US
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Colloid stabilized latex adhesives
Assignee: Ingredion Inc
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Filing: 1985-08-05
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Granted: 1987-05-26
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Expires: 2005-08-05
Abstract
Abstract Latex adhesives having a Tg of -60° to 0° C. characterized by superior rheological properties, are prepared without the use of additional thickeners from a colloid stabilized latex comprising: 65-90% by weight of the latex polymer solids of an acrylate or methacrylate ester monomer polymerized in 10-35% by weight of the latex solids of a polymeric colloid, the polymeric colloid having a Tg of -40° to 0° C., a number average molecular weight of 2,000 to 10,000 and comprising (a) 50 to 85% by weight of a monomer of the formula: ##STR1## where R' is hydrogen or methyl and R" is a C 1 -C 12 straight or branched chain alkyl group; (b) 10 to 50% by weight of an ethylenically unsaturated mono- or dicarboxylic acid; (c) 5 to 30% by weight of an acrylic or methacrylic ester of a polyalkylene oxide, and (d) 0 to 30% by weight of another ethylenically unsaturated copolymerizable monomer.
Inventors
- 👤 Carmine P. Iovine
- 👤 Yen-Jer Shih
- 👤 Paul B. Foreman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:08
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F265/06; C09; C09J; C09J151/00; C09J151/003; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
175 words
A latex adhesive composition having a Tg of -60 to 0 C. comprising 65 to 90% by weight of the latex solids of a discontinuous phase of an acrylate or methacrylate ester monomer polymerized in 10 to 35% by weight of the latex solids of a polymeric colloid, the polymeric colloid having a Tg of -40 to 0 C., a number of average molecular weight of 2,000 to 10,000 and consisting essentially of: (a) 50 to 85% by weight of a monomer of the formula: ##STR4## where R' is hydrogen or methyl and R" is a C 1 -C 12 straight or branched chain alkyl group; (b) 10 to 50% by weight of an ethylenically unsaturated mono- or dicarboxylic acid; (c) 5 to 30% by weight of an acrylic or methacrylic ester of a polyalkylene oxide; and (d) 0 to 30% by weight of another ethylenically unsaturated copolymerizable monomer selected from the group consisting of hydroxyalkyl acrylates or methacrylates; acrylamide, methyacrylamide and their N-substituted derivatives; with the proviso that components a-d total 100% by weight.
Claim 2
Dependent Claim
175 words
A latex adhesive composition having a Tg of -60 to 0 C. comprising 65 to 90% by weight of the latex solids of a discontinuous phase of an acrylate or methacrylate ester monomer polymerized in 10 to 35% by weight of the latex solids of a polymeric colloid, the polymeric colloid having a Tg of -40 to 0 C., a number of average molecular weight of 2,000 to 10,000 and consisting essentially of: (a) 50 to 85% by weight of a monomer of the formula: ##STR4## where R' is hydrogen or methyl and R" is a C 1 -C 12 straight or branched chain alkyl group; (b) 10 to 50% by weight of an ethylenically unsaturated mono- or dicarboxylic acid; (c) 5 to 30% by weight of an acrylic or methacrylic ester of a polyalkylene oxide; and (d) 0 to 30% by weight of another ethylenically unsaturated copolymerizable monomer selected from the group consisting of hydroxyalkyl acrylates or methacrylates; acrylamide, methyacrylamide and their N-substituted derivatives; with the proviso that components a-d total 100% by weight.
Claim 3
Dependent Claim
35 words
The adhesive of claim 1 wherein the acrylate or methacrylate monomer used in the polymeric colloid is selected from the group consisting of the methyl, ethyl, butyl, 2-ethylhexyl, octyl, decyl, dodecyl acrylate or corresponding methacrylates.
Claim 4
Dependent Claim
15 words
The adhesive of claim 2 wherein the acrylate monomer is butyl acrylate or 2-ethylhexyl acrylate.
Claim 5
Dependent Claim
32 words
The adhesive of claim 1 wherein the acrylate or methacrylate monomer used in the colloid is present in an amount of 60 to 80% by weight of the solids of the colloid.
Claim 6
Dependent Claim
13 words
The adhesive of claim 1 wherein the colloid contains acrylic or methacrylic acid.
Claim 7
Dependent Claim
12 words
The adhesive of claim 1 wherein the colloid contains polyethylene glycol methacrylate.
Claim 8
Dependent Claim
30 words
The adhesive of claim 1 wherein the colloid contains an ethylenically unsaturated copolymerizable monomer selected from the group consisting of hydroxyalkyl acrylates or methacrylates; acrylamide, methacrylamide and their N-substituted derivatives.
Claim 9
Dependent Claim
34 words
The adhesive of claim 1 wherein the acrylate or methacrylate comonomer of the discontinuous phase is selected from the group consisting of the methyl, ethyl, butyl, 2-ethylhexyl, octyl, decyl, dodecyl acrylate or corresponding methacrylates.
Claim 10
Dependent Claim
14 words
The adhesive of claim 8 wherein the monomer is butyl acrylate or 2-ethylhexyl acrylate.
Claim 11
Dependent Claim
65 words
The adhesive of claim 1 wherein a minor portion of the solids of the discontinuous phase comprises a vinyl polymerizable monomer selected from the group consisting of the esters of acrylic or methacrylic acid with C 1 -C 18 alcohols; acrylamide or methacrylamide or their corresponding N-substituted derivatives; vinyl ethers; N-vinyl lactans; halogenated vinyl compounds; alkyl vinyl ketones; diesters and polyalkylene glycol acrylates or methacrylates.
Claim 12
Dependent Claim
38 words
The adhesive of claim 1 wherein less than 2% by weight of the solids of the discontinuous phase comprises a multifunctional monomer selected from the group consisting of diallyl maleate, triallyl cyanurate, tetraethylene glycol dimethacrylate, and hexa-allyl sucrose.
Claim 13
Dependent Claim
27 words
The adhesive of claim 1 which is formulated as a pressure sensitive and is prepared with a polymeric colloid having a Tg of -40° to -20° C.
Claim 14
Dependent Claim
27 words
The adhesive of claim 1 which is formulated as a laminating adhesive and is prepared using a polymeric colloid having a Tg of -25° to -10° C.
Claim 15
Dependent Claim
10 words
Pressure sensitive coatings formed with the adhesive of claim 12.
Claim 16
Dependent Claim
8 words
Laminates formed with the adhesive of claim 13.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |