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. 17, 1997
Filed:
Jun. 16, 1995
Applicant:
Inventors:
Gary R Miron, St. Paul, MN (US);
Thanh-Huong Thi Nguyen, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
428 401 ; 359515 ; 359536 ; 428 402 ; 428 409 ; 428 421 ; 428 67 ; 428323 ; 428325 ; 428327 ; 428328 ; 428254 ; 428457 ; 428480 ; 428492 ; 4283 / ;
Abstract
Retroreflective articles for life saving devices at sea are described comprising a layer of a pressure-sensitive adhesive made using a solvent-free hot melt process which employs as starting material a tackified non-thermoplastic hydrocarbon elastomer. The process employs a continuous compounding device that has a sequence of alternating conveying and processing zones.