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:
Dec. 22, 1987
Filed:
Jun. 04, 1986
Applicant:
Inventors:
Heinrich Boden, Leverkusen, DE;
Walter Schneider, Overath, DE;
Assignee:
Bayer Aktiengesellschaft, Bayerwerk, DE;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; C08G / ;
U.S. Cl.
CPC ...
2643286 ; 264 405 ; 264 51 ; 26433119 ; 264D / ; 425156 ; 425160 ; 425543 ; 425590 ; 4258 / ;
Abstract
Plastics-forming materials are shaped in a mold tool sealed by an associated closing unit. Lifting elements the stroke of which can be limited and controlled are associated with the mold tool. Shaping is accomplished by filling the mold cavity with reaction mixture while the mold tool halves are not completely sealed, sealing the filled mold and keeping the mold sealed until the article is completely cured. This method and apparatus are particularly useful in the production of dimensionally accurate geometrically complicated shaped articles.