Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1993-10-14
1994-10-18
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
556428, 556422, 556470, 528 34, C08G 7724
Patent
active
053570251
ABSTRACT:
A sealant made from a room temperature curing polydimethylsiloxane composition has a siloxaphobic surface layer at the air-sealant interface where this layer is a fluorocarbon compound and a drying oil oxidation product. Elastomeric compositions made from polydimethylsiloxanes having both low reactivity endgroups and high reactivity endgroups and a siloxaphobic agent of fluorocarbon alcohol or a reaction product of the fluorocarbon alcohol and a hydrolyzable silane, are particularly useful for sealing buildings because they can withstand the expansions and contractions. One siloxaphobic agent is the reaction product between a fluorocarbon alcohol and a methyltri(methylethylketoximo)silane and the formula of one of the reaction product compounds is ##STR1## wherein x has an average value of at least 6.
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Altes Michael G.
Bergman Louise C.
Gvozdic Nedeljko V.
Klosowski Jerome M.
O'Neil Virginia K.
Bleutge John C.
Borrousch Roger H.
Dow Corning Corporation
Glass Margaret W.
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