Silane grafted copolymers of an alpha-olefin and a vinyl...

Details Silane grafted copolymers of an alpha-olefin and a vinyl... Silane grafted copolymers of an alpha-olefin and a vinyl...

2002-06-24

2003-07-08

Lipman, Bernard (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

active

06590039

ABSTRACT:

BACKGROUND OF THE INVENTION
Field of the Invention
The invention relates to curable silane-grafted alpha-olefin/vinyl aromatic copolymers particularly useful in sealants, caulks, adhesives and coating compositions. Relevant disclosures are found in WO 95/29197 and U.S. Pat. No. 5,869,591.
SUMMARY OF THE INVENTION
The present invention provides a silylated copolymer which is the reaction product of a) an olefin copolymer comprising at least 50 mole % of at least one alpha-olefin and at least one alkylstyrene monomer; b) a silane of the general formula RR′SiY
2
wherein R represents a monovalent olefinically unsaturated hydrocarbon or hydrocarbonoxy radical, each Y represents a hydrolyzable organic radical and R′ represents an alkyl or aryl radical or a Y radical; and c) a free radical generating agent.
The invention also provides a process for producing a silylated copolymer which comprises the steps of contacting: a) an olefin copolymer comprising at least 50 mole % of at least one alpha-olefin and at least one alkylstyrene monomer; and b) a silane of the general formula RR′SiY
2
wherein R represents a monovalent olefinically unsaturated hydrocarbon or hydrocarbonoxy radical, each Y represents a hydrolyzable organic radical and R′ represents an alkyl or aryl radical or a Y radical; said contact being made in the presence of a free radical generating agent at reaction conditions in a reaction zone.
The silylated copolymers of the invention are readily curable by contact with water (moisture) and a silanol condensation catalyst and are useful as a polymeric component in sealant, caulking, adhesive and coating formulations.


REFERENCES:
patent: 3075948 (1963-01-01), Santelli
patent: 5543484 (1996-08-01), Chung et al.
patent: 5866659 (1999-02-01), Chung et al.
patent: 5869591 (1999-02-01), McKay et al.
patent: 6011120 (2000-01-01), Frechet et al.
patent: 19 06 088 (1969-02-01), None
patent: 0 243 124 (1987-10-01), None
patent: 0 426 073 (1991-05-01), None
patent: 2 030 899 (1970-11-01), None
patent: 2 293 776 (1976-07-01), None
patent: WO 91/04992 (1991-04-01), None
patent: WO 92/16569 (1992-10-01), None
patent: WO 94/13718 (1994-07-01), None
patent: WO 95/29197 (1995-11-01), None
patent: WO 96/11959 (1996-04-01), None
patent: WO 96/16096 (1996-05-01), None
patent: WO 96/36650 (1996-11-01), None
patent: WO 97/05176 (1997-02-01), None
patent: WO 98/28347 (1998-07-01), None

Affiliated with

Also associated with

Rating

Silane grafted copolymers of an alpha-olefin and a vinyl... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silane grafted copolymers of an alpha-olefin and a vinyl..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silane grafted copolymers of an alpha-olefin and a vinyl... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3001497