ORGANOPOLYSILOXANE CLUSTER POLYMER FOR RAPID AIR CURE

A composition contains an organopolysiloxane having the following average chemical structure: X3SiO-SiR2-R′-(R2SiO)x-R2Si-[Rb-(R2SiO)y-R2Si-Rb′-(R2SiO)z-R2Si]m-R′-R2SiO-SiX3; where X is -OSiR2-R′-R2SiO-R2Si-R″-A; R is an alkyl group having from 2 to 6 carbons and aryl groups; R′, R″, Rb and Rb′ are...

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Bibliographische Detailangaben
Hauptverfasser:	THOMAS, Ryan, SUNDERLAND, Julia, LU, Gang, SHEPHARD, Nick
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	A composition contains an organopolysiloxane having the following average chemical structure: X3SiO-SiR2-R′-(R2SiO)x-R2Si-[Rb-(R2SiO)y-R2Si-Rb′-(R2SiO)z-R2Si]m-R′-R2SiO-SiX3; where X is -OSiR2-R′-R2SiO-R2Si-R″-A; R is an alkyl group having from 2 to 6 carbons and aryl groups; R′, R″, Rb and Rb′ are divalent hydrocarbon groups comprising a chain of 2 to 6 methylene units; A is acrylate, methacrylate or trialkoxysilyl; provided that, on average, 60 to 90 mole-percent of the A groups are acrylate and methacrylate; Subscript m has an average value in a range of zero to 10; Subscripts x, y and z each has an average value in a range of zero to 1200; and provided that the average values of m, x, y and z are such that the sum of the average values for x, y and z is in a range of 300-1200 and the molar ratio of methylene units to siloxane units is less than 0.15.