Hydroxyorganosiloxanes and copolymers

• US 3,317,460 A
• Filed: 04/01/1963
• Issued: 05/02/1967
• Est. Priority Date: 04/01/1963
• Status: Expired due to Term

• Current Assignee: Harold A. Clark, Loren A. Haluska
• Original Assignee: Harold A. Clark, Loren A. Haluska
• Inventors: Clark, Harold A., Haluska, Loren A.
• Application Number:
  US04/269,781
• Time in Patent Office: 1,492 Days
• US Class Current: 556/445
• CPC Class Codes: C07F 7/081 comprising at least one atom selected from the elements N, O, halogen, S, Se or Te
• CPC Class Codes: C07F 7/0838 Compounds with one or more Si-O-Si sequences compounds with a ring containing only alternating Si and O atoms, i.e. cyclosilanes C07F7/21
• CPC Class Codes: C08G 18/10 Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• CPC Class Codes: C08G 18/38 having heteroatoms other than oxygen C08G18/32 takes precedence
• CPC Class Codes: C08G 18/3893 containing silicon
• CPC Class Codes: C08G 77/00 Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
• CPC Class Codes: C08G 77/38 Polysiloxanes modified by chemical after-treatment C08G77/045 takes precedence

Claims

1. A SILOXANE HAVING THE GENERAL FORMULA

8. A COPOLYMER CONSISTING ESSENTIALLY OF AT LEAST ONE SILOXANE UNIT HAVING THE GENERAL FORMULA