US5408010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoroorganic soli-resist agents
Assignee: EIDP Inc
•
Filing: 1994-07-28
•
Granted: 1995-04-18
•
Expires: 2014-07-28
Abstract
Abstract Fluoroalkyl-substituted maleic anhydride polymers, substrates treated therewith, and to novel processes for preparing and using the same. The polymers can be prepared by reacting: (1) terminally unsaturated alkenylamines or alcohols (e.g. allyl amine or alcohol, or diallyl amine) with maleic anhydride polymers, and (2) the resulting polymeric amides or esters with fluoroalkyl iodides in the presence of a free radical initiator. Dehydroiodination of the resulting product with base yields novel polymeric products which provide oil- and water-repellency as well as soil-resistance when applied to substrates, particularly nylon fibers.
Inventors
- 👤 Donald D. May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:29
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/18; C08F8/20; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/3175
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
147 words
A composition comprising a copolymer having the formula: ##STR7## wherein R f is at least one C 3 to C 20 fluoroalkyl radical having the formula: YF 2 C(F 2 C) x -- in which Y is F, Cl, Br, or H, and x is 2 to 19; R is H, C 1 to C 16 alkyl, or a radical having the formula: ##STR8## ##STR9## R 2 is R 3 is H-- or CH 3 O--; R 4 is H--, CH 3 --; ##STR10## and R 3 plus R 4 is --O--CH 2 --O--; R 5 is H--, CH 3 ; or ##STR11## R 6 is H-- or CH 3 --; X is --NH--(CH 2 ) a CH═CH--,--O--(CH 2 ) a CH═CH--, ##STR12## a is 1 to 12; M is H, NH 4 , or a Group IA or IIA metal; and n is 1 to 2000.
Claim 2
Dependent Claim
147 words
A composition comprising a copolymer having the formula: ##STR7## wherein R f is at least one C 3 to C 20 fluoroalkyl radical having the formula: YF 2 C(F 2 C) x -- in which Y is F, Cl, Br, or H, and x is 2 to 19; R is H, C 1 to C 16 alkyl, or a radical having the formula: ##STR8## ##STR9## R 2 is R 3 is H-- or CH 3 O--; R 4 is H--, CH 3 --; ##STR10## and R 3 plus R 4 is --O--CH 2 --O--; R 5 is H--, CH 3 ; or ##STR11## R 6 is H-- or CH 3 --; X is --NH--(CH 2 ) a CH═CH--,--O--(CH 2 ) a CH═CH--, ##STR12## a is 1 to 12; M is H, NH 4 , or a Group IA or IIA metal; and n is 1 to 2000.
Claim 3
Dependent Claim
9 words
The composition of claim 1 wherein Y is F.
Claim 4
Dependent Claim
10 words
The composition of claim 1 wherein R f is perfluroalkyl.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein X is --NH--CH 2 CH═CH--.
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein X is --O--CH 2 CH═CH--.
Claim 7
Dependent Claim
9 words
The composition of claim 1 wherein X is ##STR13##
References Cited (Backward Citations)
US3876589A
Cited
US4255299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-17 | 1998-10-17 | 1999-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-17 | 2002-10-17 | 2003-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-17 | 2006-10-17 | 2007-04-18 | $7700.00 | Window Closed / Lapsed |