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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.:

US 4757114 B1

PDFFull Text
Date of Patent:
Jul. 12, 1988

Filed:

Nov. 19, 1985

Process for making a block copolymer hydrocarbon resin tackifier

Applicant:
Inventors:

Chiaki Tochinai, Tokyo, JP;

Tadanao Kohara, Yokohama, JP;

Sadayoshi Budo, Kanagawa, JP;

Hiroaki Masuda, Yokohama, JP;

Takayoshi Yoshida, Kanagawa, JP;

Assignee:

Exxon Research & Engineering Co., Florham Park, NJ (US);

Attorney:

Hunt; J. F.

Primary Examiner:

Allan M Lieberman

Int. Cl.
CPC ...
C08F / ; C08L / ;
U.S. Cl.
CPC ...
525289 ; 524499 ; 525 80 ; 525319 ; 525320 ;
Abstract

Petroleum Resins particularly effective for use as tackifiers for hot melt adhesives and in tackifiers for solvent-based pressure sensitive adhesives are prepared by a process Wherein (1) a C.sub.8 - and/or C.sub.9 aromatic unsaturated hydrocarbon-containing feed (optionally containing up to 18 wt. % or C.sub.4 or C.sub.5 unsaturated aliphatic hydrocarbons) is first polymerized completely and thereafter a C.sub.5 -aliphatic unsaturated hydrocarbon-containing feed is added, polymerization continued and the reactor effluent stripped to obtain the resin. The order of polymerization may be reversed.

Find Patent Forward Citations

Tochinai, Chiaki. (1988). Process for making a block copolymer hydrocarbon resin tackifier (U.S. Patent No. 4757114). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4757114

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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