Laminated sanitary rubber article

• US 5,288,560 A
• Filed: 01/28/1992
• Issued: 02/22/1994
• Est. Priority Date: 01/30/1991
• Status: Expired due to Term

• Current Assignee: Daikyo Gomu Seiko,Ltd.
• Original Assignee: Daikyo Gomu Seiko,Ltd.
• Inventors: Sudo, Morihiro, Kawachi, Yasushi, Muraki, Tomoyasu, Kawachi, Eiji
• Primary Examiner(s): Sluby, P. C.
• Application Number:
  US07/827,116
• Time in Patent Office: 756 Days
• Field of Search: 428/494, 428/519, 428/520, 428/521, 215/364, 220/DIG. 19
• US Class Current: 428/494
• CPC Class Codes: A61J 1/1468 Containers characterised by specific material properties
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/31513 Piston constructions to improve sealing or sliding
• CPC Class Codes: A61M 5/31515 Connection of piston with piston rod
• CPC Class Codes: B32B 2439/00 Containers; Receptacles
• CPC Class Codes: B32B 25/08 of synthetic resin
• CPC Class Codes: B32B 27/32 comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B65D 51/18 Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures B65D51/247 takes precedence
• CPC Class Codes: C08J 2321/00 Characterised by the use of unspecified rubbers
• CPC Class Codes: C08J 7/0427 with only one layer of a composition containing a polymer binder with more layers C08J7/042
• CPC Class Codes: C08J 7/043 Improving the adhesiveness of the coatings per se, e.g. forming primers adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50
• CPC Class Codes: Y10S 220/19 Rubber plugs and caps
• CPC Class Codes: Y10T 428/31833 Next to aldehyde or ketone condensation product or addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31924 Including polyene monomers
• CPC Class Codes: Y10T 428/31928 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31931 Polyene monomer-containing

Abstract

The present invention provides sanitary laminated rubber articles suitable for use as various articles with safety and sanitary property, for example, containers for foods or pharmaceutical chemicals, transporters, instruments, packaging materials and the like. In this sanitary laminated article, the rubber surface is laminated with a resin film comprising a cyclic olefinic compound or bridged polycyclic hydrocarbon compound as a polymeric component.

Claims

1. A sanitary rubber article having a resin film laminated on the surface of a base resin, said film made from a resin previously produced by polymerizing an aliphatic cyclic olefinic compound or bridged polycyclic hydrocarbon compound, prior to being laminated on the rubber article.

2. The sanitary rubber article as claimed in claim 1, wherein the aliphatic cyclic olefin compound is at least one member selected from the group consisting of monocyclic olefinic compounds and alkyl derivatives and acrylate derivatives thereof.

3. The sanitary rubber article as claimed in claim 1, wherein the bridged polycyclic hydrocarbon compound is one having at least one unsaturated bond in the ring or substituent.

4. The sanitary rubber article as claimed in claim 1, wherein a resin made from the aliphatic cyclic olefinic compound or the bridged polycyclic hydrocarbon compound further comprises a resin produced by polymerizing at least one member selected from the group consisting of lower olefins having 2 to 6 carbon atoms and aromatic vinyl compounds.

5. The sanitary rubber article as claimed in claim 1, wherein a resin made from the aliphatic cyclic olefinic compound or the bridged polycyclic hydrocarbon compound is mixed with an olefin type resin.

6. The sanitary rubber article as claimed in claim 1, wherein a resin made from the aliphatic cyclic olefinic compound or the bridged polycyclic hydrocarbon compound as a polymeric component has a bromine number of at most 5.

7. The sanitary rubber article as claimed in claim 1, wherein a resin made from the aliphatic cyclic olefinic compound or the bridged polycyclic hydrocarbon compound has a softening point of at least 90°

C.