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.

Date of Patent:
Mar. 04, 1980

Filed:

Aug. 01, 1977
Applicant:
Inventors:

Silvio Vargiu, Casatenovo, IT;

Pier L Manzoni, Codogno, IT;

Mario Bernasconi, Maleo, IT;

Assignee:

Euteco S.p.A., Milan, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264129 ; 264151 ; 264175 ; 264282 ;
Abstract

Novolak phenolic resin compositions are formed into molding granules by homogenizing the composition above the melting point of the resin, calendering the homogenized composition with conversion into a coherent sheet, rolling the sheet between a pair of rollers, at least one of which is indented, to produce a coherent embossed sheet, fracturating the embossed sheet with separation of the granules having substantially the shape and size of the embossments, coating the granules with a phenolic compound and heat-treating the coated granules by flowing a stream of inert gas having a temperature not exceeding 130.degree. C. The resulting granules are free-flowing, free from a tendency to release dust and particularly suitable for injection molding.


Find Patent Forward Citations

Loading…