Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1989-06-05
1991-10-22
Robinson, Ellis P.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428 53, 428 54, 428 57, 428 58, 428192, 4284246, 5417, 1563043, 1563045, 156298, 1602291, B32B 702, A47G 906, B29C 6500
Patent
active
050594761
ABSTRACT:
A hinged flexible article is provided which has rigid or semirigid substrate means with an insert of a hinge material which permits repeated flexing of the article about the hinge without failure. The substrate means has a hardness of at least about 35 Shore D as measured by ASTM test D-2240, while the hinge material has a hardness of from about 25 to about 60 Shore D as measured by ASTM test D-2240.
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patent: 4476174 (1984-10-01), Carrera
patent: 4654245 (1987-03-01), Balzer et al.
patent: 4663903 (1987-05-01), Ellingson
patent: 4766020 (1988-08-01), Ellingson
patent: 4877672 (1989-10-01), Shreiner
Handbook of Thermoplastic Elastomers, 2nd Ed., M. Walker, pp. 201-203.
"Hytrel, A New Concept in Plastic Hinges Based on Dupont Hytrel.RTM. Polyester Elastomer", E85536.
Greenlee William S.
Mertzel Elaine A.
Schaaf Glen D.
Steiniger John L.
Hudak Daniel J.
Loney Donald J.
Powell Joe A.
Robinson Ellis P.
Shunk Laura F.
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