Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1989-06-06
1991-07-09
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 33, 528 34, 524391, 524765, 524385, 524386, 524376, 524755, 524762, 524770, 524284, 524773, 524356, C08F28300
Patent
active
050306995
ABSTRACT:
Disclosed is a ladder silicone oligomer composition which comprises [A] 100 weight parts of a ladder silicone oligomer containing 1 to 10 weight % of hydroxyl groups and 1 to 10 weight % of ethoxy groups, [B] 1 to 200 weight parts of at least one silicon-containing compound selected from (a) silicone oligomers and polymers having a number average molecular weight of 500 to 100,000, which are obtained by reacting a compound of the following formula (I): ##STR1## wherein R.sub.1 is lower alkyl or phenyl, and R.sub.2 is lower alkyl, with a compound of the following formula (II): ##STR2## wherein R.sub.3 is lower alkyl, or phenyl, and R.sub.4 is lower alkyl, the molar ratio of the compound (I) to the compound (II) being from 1/0.3 to 1/9, and (b) ethyl silicates having a silica content of 28.8 to 45 weight % and hydrolysis products thereof, and [C] an organic solvent. The ladder silicone oligomer composition is useful as a coating material and an adhesive.
REFERENCES:
patent: 3457323 (1969-07-01), Stengle
patent: 4510283 (1985-04-01), Takeda et al.
patent: 4513132 (1985-04-01), Shoji et al.
patent: 4801507 (1989-01-01), Estes et al.
Hackh's Chemical Dictionary, 4th ed., McGraw-Hill Book Co., 1969, p. 141.
Kamoi Noritoshi
Matsui Fumio
Miyata Yoshio
Motoyama Takahiko
Namba Yoichi
Marquis Melvyn I.
Showa Denko K.K.
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