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
2011-07-12
2011-07-12
Jagannathan, Vasu (Department: 1764)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S240000, C525S242000, C525S326100, C525S091000, C525S262000, C525S244000, C525S248000, C525S250000, C525S241000, C525S271000
Reexamination Certificate
active
07977432
ABSTRACT:
The present invention is a, solid block copolymer comprising at least two polymer end blocks A and at least one polymer interior block B wherein each A block is a polymer block resistant to lithiation and each B block is a polymer block susceptible to lithiation, and wherein said A and B blocks do not contain any significant levels of olefinic unsaturation. After lithiation, the lithiated polymer is reacted with at least one graftable functional molecule selected from the group consisting of an electrophilic graftable molecule containing a functional group and an electrophile. Preferred are carbon monoxide and ethylene oxide. Also claimed are processes for making such block copolymers, and the various end uses and applications for such block copolymers.
REFERENCES:
patent: 4548735 (1985-10-01), Bock et al.
patent: 4797447 (1989-01-01), Gergen et al.
patent: 6699941 (2004-03-01), Handlin et al.
patent: 2003/0176582 (2003-09-01), Bening et al.
Bening Robert C.
Handlin, Jr. Dale Lee
Trenor Scott Russell
Willis Carl Lesley
Jagannathan Vasu
Kaucher Mark S
Kraton Polymers U.S. LLC
Masse Michael A.
Novak Druce & Quigg
LandOfFree
Functionalized block copolymers, method for making same, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Functionalized block copolymers, method for making same, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Functionalized block copolymers, method for making same, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2715460