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Room temperature curable organopolysiloxanes and process for preparing same

Assignee: Wacker Chemical Corp
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Filing: 1970-12-30
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Granted: 1972-09-19
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Expires: 1990-12-30
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Abstract

Abstract The invention relates to siloxane cross-linking agents and to curable one-component modified organopolysiloxanes obtained from the reaction of the siloxane cross-linking agents and a hydroxylterminated modified organopolysiloxane to form a composition which is curable by ambient moisture.

Inventors

  • 👤 Guenther Fritz Lengick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 09:02
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0892; C07F7/0838; C07F7/10; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08L; C08L83/00; C08L83/10; Y; Y10; Y10S; Y10S528/00; Y10S528/901

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 178 words
A composition which is curable to a solid elastomeric state when exposed to atmospheric moisture having the formula: wherein Q is a radical of the formula: in which R and R'' are selected from the group consisting of monovalent hydrocarbon radicals, halogenated monovalent hydrocarbon radicals and cyanoalkyl radicals; R'''' is a divalent hydrocarbon radical; R'''''' is a polymeric radical linked to R'''' by a carbon-to-carbon linkage; said polymeric radical constituted of recurring units derived from monomers containing olefinic unsaturation, said monomers being selected from the class consisting of straight chain olefins, whether or not attached to an aromatic nucleus, halogenated olefins, again whether or not attached to an aromatic nucleus, unsaturated acids esters of organic acids in which either the esterifying group or the derivative acid is unsaturated, unsaturated amides and unsaturated nitriles; Z is a hydrolyzable group selected from the class consisting of acyloxy, amino, aminooxy, oximo and phosphato radicals; each m is a number greater than 1; x is a number of from 0 to 20,000 and y is a number of from 1 to 500.
Claim 2
Dependent Claim 11 words
The composition of claim 2 wherein Z is an oximo radical.
Claim 3
Dependent Claim 11 words
The composition of claim 2 wherein Z is an aminooxy radical.
Claim 4
Dependent Claim 11 words
The composition of claim 2 wherein Z is a phosphato radical.
Claim 5
Dependent Claim 11 words
The composition of claim 2 wherein Z is an amino radical.

References Cited (Backward Citations)

US3555109A Cited
US3560244A Cited
US3580971A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-09-19 1976-03-20 1976-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-19 1980-03-20 1980-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-19 1984-03-20 1984-09-19 $7700.00 Window Closed / Lapsed

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