US5081192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel polymer and its preparation and use
Assignee: Daikin Industries Ltd
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Filing: 1989-05-19
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Granted: 1992-01-14
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Expires: 2009-05-19
Abstract
Abstract A polymer of the formula: PC--[CH.sub.2 CYI--(CH.sub.2).sub.n --SiR.sub.x X.sub.3-x].sub.m (I) wherein PC is a polymer chain, X is a monovalent functional group, Y is a hydrogen atom or a lower alkyl group, R is a hydrogen atom or an inactive monovalent organic group, X is an integer of 0 to 3, m is a positive integer which is not larger than the number of ends of the polymer chain PC, and n is 0, 1 or 2, having a molecular weight of 5×10 2 to 5×10 6 , which is relatively stable and easily handled.
Inventors
- 👤 Masayoshi Tatemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:28
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/26; C08F8/42
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
90 words
A polymer of the formula: PC--[CH.sub.2 CHY--(CH.sub.2).sub.n --SiR.sub.x X.sub.3-x ].sub.m wherein PC is a fluoropolymer chain, X is a monovalent functional group, Y is a hydrogen atom or a lower alkyl group, R is a hydrogen atom or an inactive monovalent organic group, x is an integer of 0 to 3, m is a positive integer which is not larger than the number of ends of the polymer chain PC, and n is 0, 1 or 2, having a molecular weight of 5× 10 2 to 5× 10 6 .
Claim 2
Dependent Claim
90 words
A polymer of the formula: PC--[CH.sub.2 CHY--(CH.sub.2).sub.n --SiR.sub.x X.sub.3-x ].sub.m wherein PC is a fluoropolymer chain, X is a monovalent functional group, Y is a hydrogen atom or a lower alkyl group, R is a hydrogen atom or an inactive monovalent organic group, x is an integer of 0 to 3, m is a positive integer which is not larger than the number of ends of the polymer chain PC, and n is 0, 1 or 2, having a molecular weight of 5× 10 2 to 5× 10 6 .
Claim 3
Dependent Claim
11 words
A curable polymer composition comprising a polymer claimed in claim 1.
Claim 4
Dependent Claim
10 words
A sealing agent comprising a polymer claimed in claim 1.
Claim 5
Dependent Claim
9 words
A coating comprising a polymer claimed in claim 1.
Claim 6
Dependent Claim
10 words
A coupling agent comprising a polymer claimed in claim 1.
Claim 7
Dependent Claim
10 words
A finishing agent comprising a polymer claimed in claim 1.
References Cited (Backward Citations)
FR1294410A
Cited
US3929850A
Cited
US4020043A
Cited
US4191714A
Cited
EP0228365A2
Cited
US4861836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-13 | 1995-07-15 | 1996-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-13 | 1999-07-15 | 2000-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-13 | 2003-07-15 | 2004-01-14 | $7700.00 | Window Closed / Lapsed |