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:
Jun. 11, 1996
Filed:
Apr. 28, 1994
Applicant:
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27N / ;
U.S. Cl.
CPC ...
264319 ; 2643287 ;
Abstract
A process for producing a concrete form made of thermoplastic resin by a press-molding process by feeding a reinforcing material-containing thermoplastic resin heated to a temperature not lower than the melting temperature of the resin into the cavity between male and female halves of a die, clamping the die and cooling the die, wherein the press-molding is carried out under the conditions that the period of time from completion of feeding the melted resin to completion of clamping is not longer than 6 seconds and flow length L of the fed resin and thickness T of the molded product satisfy the formula 190.ltoreq.L/T.