10-04-2014 дата публикации
Номер: US20140100314A1
Принадлежит:
Molding compositions are provided that include a) one or more polyisocyanates, b) one or more polyols, c) one or more catalysts catalysing the reaction between polyisocyanate and polyol, d) one or more pyrogenically produced oxides of a metal or of a metalloid, and e) at least one or more siloxanes. 1. A molding composition comprising:a) one or more polyisocyanates,b) one or more polyols,c) one or more catalysts catalyzing a reaction between said one or more polyisocyanates and said one or more polyols,d) one or more pyrogenically produced oxides of a metal or of a metalloid, and {'br': None, 'sub': 3', '2', '3', '2', 'n', '3', 'm', '3', '2, 'sup': 1', '2, 'R—Si(CH)—O-[-Si(CH)—O-]-[—Si(CH)R—O—]-Si(CH)—R\u2003\u2003(I)'}, 'e) at least one or more siloxanes of formula (I)'} [{'sup': 1', '2, 'R, Rand Rare identical or different,'}, {'sup': 2', '1, 'R and/or Rare methyl or R,'}, {'sup': '1', 'R, is identical or different, and is selected from the group of'}, {'sub': 2', 'x', 'z', '2', 'y, '—(CH)—(O)—(CH—CHR′—O)—R″,'}, {'sub': '2', '—(CH)—R′″,'}, {'sub': 2', 'x', 'z, '—(CH)—(O)—R″,'}, {'sub': 2', '2', '2', '2', '2, '—CH—CH—CH—O—CH—CH(OH)—CHOH, and'}, {'sub': 2', 'x', 'z', '2', 'y, '—(CH)—(O)—(CH—CHR′—O)—R″,'}, {'sub': 3', '2', '3, 'R′, is identical or different, and is —H, —CH, —CHCH, or phenyl moiety,'}, 'R″, is identical or different, and is —H, —(CO)—R′″, —(CO)—NH—R′″ or -alkyl,', {'sub': 1', '40, 'R′″, is identical or different, and is Cto C-alkyl, -aryl or -alkylaryl;'}, 'n+m+2=from 10 to 150,', 'm=from 0 to 20,', 'x=from 2 to 15,', 'y=from 1 to 40,', 'z=0 or 1,', {'sub': '2', 'where the units (CH—CHR′—O) can be identical or different, and'}, {'sup': 2', '1, 'with the proviso that for m=0 at least one moiety R or Ris identical with R,'}, 'and that if z=0, x and y=0 and R″ has at least 2 carbon atoms,', 'with the further proviso that the molding composition comprises less than 2% by weight, based on the entire constitution of the molding composition, of a physical ...
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