Patent US3305500A successfully refreshed from Google Patents.
US3305500A
Expired / Lapsed
US
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Coating compositions comprising butadiene-1, 3 copolymer, starch and mineral pigment
Assignee: Imperial Chemical Industries Ltd
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Filing: 1963-07-05
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Granted: 1967-02-21
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Expires: 1983-07-05
Abstract
No abstract record available.
Inventors
- 👤 Downer John Michael
- 👤 Wootton David Brian
- 👤 Hobbs Donald Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:18
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58; C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08L; C08L13/00; C08L13/02; D21H19/54; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31938
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
123 words
A PAPER COATING COMPOSITION WHICH COMPRISES AN INTIMATE MIXTURE OF MINERAL PIGMENT, STARCH AND A COPOLYMER OF FROM 30 TO 55% BY WEIGHT OF BUTADIENE-1,3, FROM 0.1% TO 13% OF AT LEAST ONE ETHYLENICALLY UNSATURATED CARBOXYLIC ACID, AND AT LEAST HALF OF THE REMAINDER BEING SELECTED FROM THE GROUP CONSISTING OF STYRENE, METHYLMETHACRYLATE AND MIXTURES THEREOF, ANY OTHER CONSTITUENT OF THE COPOLYMER BEING DERIVED FROM ANOTHER MONOETHYLENICALLY UNSATURATED COMPOUND, SAID COPOLYMER BEING IN THE FORM OF AN AQUEOUS DISPERSION, THERE BEING IN THE COMPOSITION FROM 8 TO 50 PARTS BY WEIGHT OF STARCH AND BUTADIENE-1,3 COPOLYMER TOGETHER PER 100 PARTS BY WEIGHT OF PIGMENT AND FROM 0.5 TO 2 PARTS BY WEIGHT OF BUTADIENE1,3 COPOLYMER TO EACH ONE PART BY WEIGHT OF STARCH.
Claim 2
Dependent Claim
123 words
A PAPER COATING COMPOSITION WHICH COMPRISES AN INTIMATE MIXTURE OF MINERAL PIGMENT, STARCH AND A COPOLYMER OF FROM 30 TO 55% BY WEIGHT OF BUTADIENE-1,3, FROM 0.1% TO 13% OF AT LEAST ONE ETHYLENICALLY UNSATURATED CARBOXYLIC ACID, AND AT LEAST HALF OF THE REMAINDER BEING SELECTED FROM THE GROUP CONSISTING OF STYRENE, METHYLMETHACRYLATE AND MIXTURES THEREOF, ANY OTHER CONSTITUENT OF THE COPOLYMER BEING DERIVED FROM ANOTHER MONOETHYLENICALLY UNSATURATED COMPOUND, SAID COPOLYMER BEING IN THE FORM OF AN AQUEOUS DISPERSION, THERE BEING IN THE COMPOSITION FROM 8 TO 50 PARTS BY WEIGHT OF STARCH AND BUTADIENE-1,3 COPOLYMER TOGETHER PER 100 PARTS BY WEIGHT OF PIGMENT AND FROM 0.5 TO 2 PARTS BY WEIGHT OF BUTADIENE1,3 COPOLYMER TO EACH ONE PART BY WEIGHT OF STARCH.
Claim 3
Dependent Claim
9 words
PAPER COATED WITH A COMPOSITION ACCORDING TO CLAIM 1.
References Cited (Backward Citations)
US3081198A
Cited
US3131158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |