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:
Apr. 29, 1980
Filed:
Nov. 19, 1976
Applicant:
Inventors:
Albertus J Pennings, Norg, NL;
Arnold Vossebeld, Beek, NL;
Assignee:
Stamicarbon, B.V., Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 42 ; 260 33 ; 525149 ; 525150 ; 525152 ;
Abstract
Novel, rubbery copolymers of ethylene with at least one other .alpha.-alkene such as propylene, and a polyene such as 5-ethylidene norbornene-2, characterized by a differential scanning calorimetry thermogram maximum peak at a temperature between -7 and +11.degree. C., are disclosed. These specific rubbery copolymers when one or more tackifiers are included therein, exhibit an unprecedentedly high tack and consequently provide for the first time EDPM-type compositions that have sufficient building tack for the manufacture of multi-ply articles such as tires.