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US 6,191,247 B1Granted
Polysiloxane composition having superior storage stability and rubber composition containing same
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsKazunori Ishikawa, Fumito Yatsuyanagi, Tetsuji Kawazura
Life of this patent
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Abstract
A polysiloxane composition comprising (A) a polysiloxane having a group represented by the formula (I): ≡Si—OR (I) wherein, R is a C1 to C18 substituted or unsubstituted monovalent hydrocarbon group or ether bond containing an organic group; and (B) at least 1 ppm of (a) a compound having an N, P, S, Sn, or As component or (b) an acetylene alcohol and a rubber composition containing the same. Specific polysiloxanes (A) contain both formula (I): ≡Si—OR as well as Si—H.
Claims5
A polysiloxane composition comprising
- (A) a polysiloxane having a group represented by the formula
- (R1)3—SiO—X—Si—(R1)3
- wherein:
- R1 is —CH3 or —C6H5;
- and
- X is selected from the group consisting of the following formulas (A), (B) and (C):
- wherein:
- R2 is a methyl group;
- R3 is —CH3, —C2H5, —C3H7, —C4H9, —C5H11, —C7H15, —C8H17, —C18H37, —C6H5, —CH2—C6H5, —OCH2CH2OCH3 or —OCH2CH2OCH2CH2OCH3;
- R4 is
- R5 is —CH3 or —C2H4OCH3;
- R6 is a residue of α-methylstyrene dimer;
- and
- when X is (A), l and m are at least 1 and the total of l and m are from 2 to 1000:
- when X is (B), n and p are at least 1 and the total of n and p are from 2 to 1000:
- and when X is (C). q. r. and s are at least 1 and the total of q, r, and s are from 3 to 1000;
- and
- (B) at least 1 ppm of a sulfur-containing compound.
15 more elements
Dependencies are inferred from the claim text.