Title:
SEALANT COMPOSITION
Document Type and Number:
Japanese Patent JPS62218468
Kind Code:
A
Abstract:
1. A sealant composition comprises:- (a) 100 parts by weight of a silane functionalized polymer component prepared by reacting silane of formula RR min nSiY 3-n (where n = 0, 1 or 2 and R is a non-hydrolyzable organic group, capable of grafting onto the polymer, R min is a non-hydrolyzable organic group incapable of grafting onto the polymer and Y is a hydrolyzable organic group) with a polymer component; said polymer component comprising an A min B min block copolymer, a multiblock copolymer having at least two end blocks A and at least one midblock B, or mixtures of an A min B min block copolymer and the multiblock copolymer wherein: the A min and A blocks comprise monoalkenyl arene blocks and the B min and B blocks comprise hydrogenated conjugated diene polymer blocks, and the average molecular weight of the A and A min blocks is greater than the minimum molecular weight needed to obtain microphase separation and domain formation of the A and A min blocks, and is less than the maximum molecular weight which would render the polymer incapable of being melt processed; the multiblock copolymer comprises a monoalkenyl arene content no more than the maximum weight per cent needed to retain a modulus suitable as a sealant in the resultant composition and no less than the minimum weight per cent needed to obtain the desired phase separation and the desired minimum cohesive strength for the resultant composition; and, if a B is present, (b) an amount of a midblock compatible component wherein said midblock compatible component is at a content to maintain the resultant composition in a plyable condition at room temperature and to maintain the glass transition temperature of the resultant composition below 10 DEG C. a
Inventors:
DEIBUITSUDO JIYON ESUTEI KUREA
SUTEIIBUN SOOHIYUN CHIN
RICHIYAADO GERESU
SUTEIIBUN SOOHIYUN CHIN
RICHIYAADO GERESU
Application Number:
JP4160687A
Publication Date:
September 25, 1987
Filing Date:
February 26, 1987
Export Citation:
Assignee:
SHELL INT RESEARCH
International Classes:
C08F285/00; C08F287/00; C09J151/00; C09K3/10; (IPC1-7): C08F287/00; C09K3/10
Domestic Patent References:
| JPS564605A | 1981-01-19 | |||
| JPS58225103A | 1983-12-27 | |||
| JPS5051592A | 1975-05-08 |
Foreign References:
| GB2115823A | 1983-09-14 | |||
| US3917607A | 1975-11-04 |
Attorney, Agent or Firm:
Kazuho Kawarada