Patent US4056503A successfully refreshed from Google Patents.
US4056503A
Expired / Lapsed
US
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Incorporation of multifunctional monomers (peta, tmpta, and hdoda) in vinyl-acrylic emulsion polymers
Assignee: Shell USA Inc
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Filing: 1976-10-18
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Granted: 1977-11-01
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Expires: 1996-10-18
Abstract
Abstract New emulsion polymers comprising vinyl acetate-acrylate or methacrylate emulsion polymer containing in the polymer an α,β-ethylenically unsaturated acid ester of a polyol. For example, pentaerythritol tri- and tetra-acrylate, trimethylolpropane triacrylate, hexanediol diacrylate, etc.
Inventors
- 👤 Thomas M. Powanda
- 👤 Ralph F. Patella
- 👤 Joseph A. Vona
- 👤 Charles A. DeFazio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:18
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C08K5/11; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
74 words
A latex composition comprised of an emulsion polymer of vinyl acetate with from about 5% to about 50% by weight of alkyl acrylate or methacrylate based on the total weight of vinyl acetate and alkyl acrylate or methacrylate and from about 2% to about 10% by weight, based on the total weight of said polymer, of an acrylic or methacrylic acid ester of a polyol in which at least two hydroxyl groups are esterified.
Claim 2
Dependent Claim
74 words
A latex composition comprised of an emulsion polymer of vinyl acetate with from about 5% to about 50% by weight of alkyl acrylate or methacrylate based on the total weight of vinyl acetate and alkyl acrylate or methacrylate and from about 2% to about 10% by weight, based on the total weight of said polymer, of an acrylic or methacrylic acid ester of a polyol in which at least two hydroxyl groups are esterified.
Claim 3
Dependent Claim
11 words
A composition as in claim 1 wherein said polyol is trimethylolpropane.
Claim 4
Dependent Claim
11 words
A composition as in claim 1 wherein said polyol is hexanediol.
Claim 5
Dependent Claim
11 words
A composition as in claim 1 wherein said polyol is pentaerythritol.
Claim 6
Dependent Claim
13 words
A composition as in claim 1 wherein said polyol ester is hexanediol diacrylate.
Claim 7
Dependent Claim
13 words
A composition as in claim 1 wherein said polyol ester is trimethylolpropane triacrylate.
Claim 8
Dependent Claim
13 words
A composition as in claim 1 wherein said polyol ester is pentaerythritol triacrylate.
Claim 9
Dependent Claim
74 words
A latex coating composition comprising an emulsion polymer of vinyl acetate with from about 5% to about 50% by weight of alkyl acrylate or methacrylate based on the total weight of vinyl acetate and alkyl acrylate or methacrylate and from about 2% to about 10% by weight, based on the total weight of said polymer, of an acrylic or methacrylic acid ester of a polyol in which at least two hydroxyl groups are esterified.
Claim 10
Dependent Claim
74 words
A latex coating composition comprising an emulsion polymer of vinyl acetate with from about 5% to about 50% by weight of alkyl acrylate or methacrylate based on the total weight of vinyl acetate and alkyl acrylate or methacrylate and from about 2% to about 10% by weight, based on the total weight of said polymer, of an acrylic or methacrylic acid ester of a polyol in which at least two hydroxyl groups are esterified.
Claim 11
Dependent Claim
74 words
A latex paint composition comprising an emulsion polymer of vinyl acetate with from about 5% to about 50% by weight of alkyl acrylate or methacrylate based on the total weight of vinyl acetate and alkyl acrylate or methacrylate and from about 2% to about 10% by weight, based on the total weight of said polymer, of an acrylic or methacrylic acid ester of a polyol in which at least two hydroxyl groups are esterified.
Claim 12
Dependent Claim
74 words
A latex paint composition comprising an emulsion polymer of vinyl acetate with from about 5% to about 50% by weight of alkyl acrylate or methacrylate based on the total weight of vinyl acetate and alkyl acrylate or methacrylate and from about 2% to about 10% by weight, based on the total weight of said polymer, of an acrylic or methacrylic acid ester of a polyol in which at least two hydroxyl groups are esterified.
References Cited (Backward Citations)
US3203918A
Cited
US3755237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |