Platinum Compounds (15/00n7) Patents (Class 987/10)
Devoid of any platinum atom directly bonded to carbon (15/00n7b) (Class 987/11)
  • Curable organopolysiloxane compositions
    Patent number: 6187890
    Abstract: Curable organopolysiloxane compositions comprising a platinum catalyst selected from the group consisting of (PR23)2Pt(—C≡C—R3)2  (III), (R22P—R4—PR22)Pt(—C≡C—R3)2  (IV) and H—C≡C—R5—C≡C—[—Pt(PR23)2—C≡C—R5—C≡C—]e—H  (V) where R2, R3, R4, R5 and e are as defined in claim 1.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: February 13, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Armin Fehn, Frank Achenbach, Stefan Dietl