Global Patent Index - EP 1025158 A1

EP 1025158 A1 20000809 - SILICONE COMPOSITION CROSS-LINKABLE INTO ADHESIVE GEL AND ABSORBER WITH MICROSPHERES

Title (en)

SILICONE COMPOSITION CROSS-LINKABLE INTO ADHESIVE GEL AND ABSORBER WITH MICROSPHERES

Title (de)

MIKROHOHLKUGELN-ENTHALTENDE HÄRTBARE SILOXAN-ZUSAMMENSETZUNG FÜR KLEBEGEL UND STOSSDÄMPFER

Title (fr)

COMPOSITION SILICONE RETICULABLE EN GEL ADHESIF ET AMORTISSEUR AVEC MICROSPHERES

Publication

EP 1025158 A1 20000809 (FR)

Application

EP 98952805 A 19981028

Priority

  • FR 9802307 W 19981028
  • FR 9713809 A 19971029

Abstract (en)

[origin: FR2770220A1] Silicone compositions that can be crosslinked by hydrosilylation to form adhesive and shock absorbing gels comprise: polysiloxane (A), (B) and optionally (F); adhesion promoter (C); hollow organic microspheres (D); a hydrosilylation catalyst (E); and optionally a polysiloxane diluent. Polysiloxane (A) has terminal units of formula (R)2QSiO1/2 (I) and internal units of formula (R<1>)pQqSiO (II). In (I) and (II), R and R<1> = 1-6 C alkyl and/or optionally substituted aryl; Q = H or alkenyl, preferably vinyl; p = 1 or 2; q = 0 or 1; and p + q = 2. Polysiloxane (B) has terminal units of formula Qs(R<2>)tSiO1/2 (III) and internal units of formula Qu(R<3>)vSiO (IV). In (III) and (IV), R<2> and R<3> = R; s = 0-3; t = 0-3; s + t = 3; u = 0-2; v = 0-2, provided that v = 1 in at least one of the internal units; and u + v = 2. Polysiloxane diluent (F) has terminal units of formula (R<6>)3SiO1/2 (V) and internal units of formula (R<7>)2SiO (VI). In (V) and (VI), R<6> and R<7> = R.

IPC 1-7

C08K 7/22; C08L 83/07

IPC 8 full level

C08K 7/22 (2006.01); C08L 83/04 (2006.01); C08L 83/07 (2006.01); C09J 183/07 (2006.01)

CPC (source: EP US)

C08K 7/22 (2013.01 - EP US); C08L 83/04 (2013.01 - EP US); C08G 77/12 (2013.01 - EP US); C08G 77/20 (2013.01 - EP US); C08G 77/70 (2013.01 - EP US)

C-Set (source: EP US)

  1. C08K 7/22 + C08L 83/04
  2. C08L 83/04 + C08L 2666/04

Citation (search report)

See references of WO 9921918A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

DOCDB simple family (publication)

FR 2770220 A1 19990430; FR 2770220 B1 20030131; AU 1037099 A 19990517; EP 1025158 A1 20000809; RU 2205848 C2 20030610; US 2003144411 A1 20030731; US 6486237 B1 20021126; US 6972313 B2 20051206; WO 9921918 A1 19990506

DOCDB simple family (application)

FR 9713809 A 19971029; AU 1037099 A 19981028; EP 98952805 A 19981028; FR 9802307 W 19981028; RU 2000113217 A 19981028; US 26500702 A 20021004; US 53040100 A 20000621