Patent US4599378A successfully refreshed from Google Patents.
US4599378A
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Vinyl acetate copolymer emulsions for paper coating compositions
Assignee: Air Products and Chemicals Inc
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Filing: 1984-06-22
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Granted: 1986-07-08
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Expires: 2004-06-22
Abstract
Abstract Aqueous vinyl ester copolymer emulsions possessing good dry pick and wet pick strengths in paper coating compositions comprise a vinyl ester copolymer colloidally dispersed in an aqueous medium, the copolymer consisting essentially of (a) a vinyl ester of a C 1 -C 12 alkanoic acid, (b) about 0.1 to 10 wt % of an ethylenically unsaturated mono- or dicarboxylic acid or half ester thereof, (c) about 0.05 to 10 wt % of a dicyclopentadienyl acrylate, and (d) 0-50 wt % of an alkyl acrylate.
Inventors
- 👤 Mary L. Hausman
- 👤 Gerald D. Miller
- 👤 Lawrence K. Wempe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:20
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/60; C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; D21H19/58
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
81 words
A copolymer emulsion comprising a vinyl ester copolymer colloidally dispersed in an aqueous medium, the copolymer consisting of (a) vinyl acetate, (b) 0.1 to 10 wt % of an ethylenically unsaturated C 3 -C 10 mono- or dicarboxylic acid or half ester of such dicarboxylic acid with a C 1 -C 18 alkanol, (c) about 0.25 to 3 wt % of dicyclopentadienyl acrylate or dicyclopentadienyl methacrylate, and (d) 0-50 wt % of a C 1 -C 8 alkyl acrylate or methacrylate.
Claim 2
Dependent Claim
81 words
A copolymer emulsion comprising a vinyl ester copolymer colloidally dispersed in an aqueous medium, the copolymer consisting of (a) vinyl acetate, (b) 0.1 to 10 wt % of an ethylenically unsaturated C 3 -C 10 mono- or dicarboxylic acid or half ester of such dicarboxylic acid with a C 1 -C 18 alkanol, (c) about 0.25 to 3 wt % of dicyclopentadienyl acrylate or dicyclopentadienyl methacrylate, and (d) 0-50 wt % of a C 1 -C 8 alkyl acrylate or methacrylate.
Claim 3
Dependent Claim
16 words
The emulsion of claim 1 in which component (b) is about 0.5 to 5 wt %.
Claim 4
Dependent Claim
41 words
The emulsion of claim 1 in which component (b) is acrylic acid, methacrylic acid, crotonic acid, isocrotonic acid, maleic acid, fumaric acid, itaconic acid or a half ester of such dicarboxylic acids with methanol, ethanol, propanol, butanol, or 2-ethyl hexyl alcohol.
Claim 5
Dependent Claim
12 words
The emulsion of claim 1 in which component (c) is dicyclopentadienyl acrylate.
Claim 6
Dependent Claim
12 words
The emulsion of claim 1 in which component (c) is dicyclopentadienyl methacrylate.
Claim 7
Dependent Claim
18 words
The emulsion of claim 1 in which component (d) is 0 to less than about 20 wt %.
Claim 8
Dependent Claim
22 words
A pigmented paper coating composition comprising 100 parts pigment and 1 to 30 parts (solids) of a copolymer emulsion of claim 1.
Claim 9
Dependent Claim
49 words
A pigmented paper coating composition comprising 100 parts of pigment, 0.01 to 0.5 parts dispersing agent, 1 to 3 parts (solids) emulsion of claim 1, 0 to 25 parts co-binder, 0 to 0.2 parts defoamer and sufficient water to obtain a solids level of 35 to 70 wt %.
Claim 10
Dependent Claim
71 words
A copolymer emulsion comprising a vinyl acetate copolymer colloidally dispersed in an aqueous medium, the copolymer consisting of (a) vinyl acetate, (b) 0.1 to 10 wt % of an ethylenically unsaturated C 3 -C 10 mono- or dicarboxylic acid, (c) about 0.25 to 3 wt % of dicyclopentadienyl acrylate or dicyclopentadienyl methacrylate, and, optionally, (d) less than about 20 wt % of a C 1 -C 8 alkyl acrylate or methacrylate.
Claim 11
Dependent Claim
71 words
A copolymer emulsion comprising a vinyl acetate copolymer colloidally dispersed in an aqueous medium, the copolymer consisting of (a) vinyl acetate, (b) 0.1 to 10 wt % of an ethylenically unsaturated C 3 -C 10 mono- or dicarboxylic acid, (c) about 0.25 to 3 wt % of dicyclopentadienyl acrylate or dicyclopentadienyl methacrylate, and, optionally, (d) less than about 20 wt % of a C 1 -C 8 alkyl acrylate or methacrylate.
Claim 12
Dependent Claim
16 words
The emulsion of claim 9 in which component (b) is about 0.3 to 3 wt %.
Claim 13
Dependent Claim
12 words
The emulsion of claim 10 in which component (b) is acrylic acid.
Claim 14
Dependent Claim
12 words
The emulsion of claim 10 in which component (b) is maleic acid.
Claim 15
Dependent Claim
12 words
The emulsion of claim 9 in which component (c) is dicyclopentadienyl acrylate.
Claim 16
Dependent Claim
12 words
The emulsion of claim 9 in which component (c) is dicyclopentadienyl methacrylate.
Claim 17
Dependent Claim
12 words
The emulsion of claim 9 in which component (d) is butyl acrylate.
Claim 18
Dependent Claim
22 words
A pigmented paper coating composition comprising 100 parts pigment and 1 to 30 parts (solids) of a copolymer emulsion of claim 9.
Claim 19
Dependent Claim
49 words
A pigmented paper coating composition comprising 100 parts of pigment, 0.01 to 0.5 parts dispersing agent, 1 to 3 parts (solids) emulsion of claim 9, 0 to 25 parts co-binder, 0 to 0.2 parts defoamer and sufficient water to obtain a solids level of 35 to 70 wt %.
Claim 20
Dependent Claim
48 words
A copolymer emulsion comprising 40 to 60 wt % of a vinyl acetate copolymer colloidally dispersed in an aqueous medium, the copolymer consisting of (a) vinyl acetate, (b) 0.3 to 3 wt % maleic acid, and (c) 0.25 to 3 wt % of dicyclopentadienyl acrylate or dicyclopentadienyl methacrylate.
Claim 21
Dependent Claim
48 words
A copolymer emulsion comprising 40 to 60 wt % of a vinyl acetate copolymer colloidally dispersed in an aqueous medium, the copolymer consisting of (a) vinyl acetate, (b) 0.3 to 3 wt % maleic acid, and (c) 0.25 to 3 wt % of dicyclopentadienyl acrylate or dicyclopentadienyl methacrylate.
Claim 22
Dependent Claim
19 words
The emulsion of claim 18 in which the copolymer also contains less than about 20 wt % butyl acrylate.
Claim 23
Dependent Claim
49 words
A pigmented paper coating composition comprising 100 parts of pigment, 0.01 to 0.5 parts dispersing agent, 1 to 30 parts (solids) emulsion of claim 18, 0 to 25 parts co-binder, 0 to 0.2 parts defoamer and sufficient water to obtain a solids level of 35 to 70 wt %.
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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) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |