The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 1996
Filed:
Dec. 21, 1992
Applicant:
Inventor:
James V Crivello, Clifton Park, NY (US);
Assignee:
Polyset Company, Inc., Mechanicville, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07F / ; C07F / ; C07F / ;
U.S. Cl.
CPC ...
549215 ; 556449 ; 556434 ; 556415 ; 556439 ; 556436 ; 556425 ; 556428 ; 556445 ;
Abstract
A process for the selective monoadditon of an olefin or acetylene to a siloxane which contains two reactive Si--H bonds to produce a product in which only one of the two Si--H functions has added across the olefin or acetylene is disclosed. A process for making unsymmetrical siloxanes from symmetrical dihydrosiloxanes and products of both of these processes are also disclosed. Products are represented by the formula I in which R.sup.1 and R.sup.4 are different: ##STR1##