US3879334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for sizing and retexturizing fabrics
Assignee: Hercules LLC
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Filing: 1972-07-27
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Granted: 1975-04-22
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Expires: 1992-07-27
Abstract
Abstract This application discloses sizing and retexturizing of articles in dry cleaning by treating the articles in a solution of a resin selected from the group consisting of alpha-methylstyrene/styrene copolymers; homopolymers of alpha-methylstyrene; homopolymers of styrene; and blends thereof dissolved in a solvent such as mineral spirits or a chlorinated solvent.
Inventors
- 👤 Walter A Vredenburgh
- 👤 Paul S Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:58
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D06M15/233
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
59 words
A COMPOSITION FOR SIZING FABRICS IN DRY CLEANING CONSISTING ESSENTIALLY OF A COPOLYMER RESIN OF ALPHAMETHYLSTYRENE/STYRENE IN THE RANGE OF FROM ABOUT 90 PERCENT ALPHA-METHYLSTYRENE AND 10 PERCENT STYRENE TO ABOUT 20 PERCENT ALPHA-METHYLSTYRENE AND 80 PERCENT STYRENE AND HAVING A SOFTENING POINT (RING & BALL) NOT EXCEEDING ABOUT 110*C., SAID RESIN BEING DISSOLVED IN LOW ODOR MINERL SPIRITS.
Claim 2
Dependent Claim
59 words
A COMPOSITION FOR SIZING FABRICS IN DRY CLEANING CONSISTING ESSENTIALLY OF A COPOLYMER RESIN OF ALPHAMETHYLSTYRENE/STYRENE IN THE RANGE OF FROM ABOUT 90 PERCENT ALPHA-METHYLSTYRENE AND 10 PERCENT STYRENE TO ABOUT 20 PERCENT ALPHA-METHYLSTYRENE AND 80 PERCENT STYRENE AND HAVING A SOFTENING POINT (RING & BALL) NOT EXCEEDING ABOUT 110*C., SAID RESIN BEING DISSOLVED IN LOW ODOR MINERL SPIRITS.
Claim 3
Dependent Claim
59 words
A composition for sizing fabrics in dry cleaning consisting essentially of a copolymer resin of alpha-methylstyrene/styrene in the range of from about 90 percent alpha-methylstyrene and 10 percent styrene to about 20 percent alpha-methylstyrene and 80 percent styrene and having a softening point (Ring & Ball) not exceeding about 110*C., said resin being dissolved in low odor mineral spirits.
Claim 4
Dependent Claim
59 words
A composition for sizing fabrics in dry cleaning consisting essentially of a copolymer resin of alpha-methylstyrene/styrene in the range of from about 90 percent alpha-methylstyrene and 10 percent styrene to about 20 percent alpha-methylstyrene and 80 percent styrene and having a softening point (Ring & Ball) not exceeding about 110*C., said resin being dissolved in low odor mineral spirits.
Claim 5
Dependent Claim
21 words
The composition of claim 1 in which the resin in present in amounts of about 1 to 2 percent by weight.
Claim 6
Dependent Claim
20 words
The composition of claim 1 in which the resin in solvent has a cloud point significantly below ordinary room temperatures.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |