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:
Nov. 20, 1990
Filed:
Nov. 23, 1988
Applicant:
Inventors:
Assignee:
Korea Chemical Co., Ltd., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ;
U.S. Cl.
CPC ...
523203 ; 523205 ; 523206 ; 523209 ; 523400 ; 523457 ; 523466 ; 524437 ; 524445 ; 524451 ;
Abstract
A low stress agent which increases the coherence of organic materials and an inorganic filler, decreases the modulus in molded articles which absorb stress and impact energy is prepared by a process which comprises preparing a silane-modified reactive liquid polymer from a silane coupling agent and a reactive liquid polymer containing functional groups or double bonds, treating the surface of an inorganic filler with a silane coupling agent, and reacting said silane modified reactive liquid polymer with said treated inorganic filler. An epoxy resin or phenol resin composition which contains the low stress agent is very suitable for use in encapsulating a semiconductor.