U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Propylene polymer film

Patent 5137955 Issued on August 11, 1992. Estimated Expiration Date: Icon_subject March 16, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Polyolefin resin composition and method for making polyolefin film
Patent #: 4189420
Issued on: 02/19/1980
Inventor: Sugimoto ,   et al.

Heat sealable laminated propylene polymer packaging material
Patent #: 4230767
Issued on: 10/28/1980
Inventor: Isaka ,   et al.

Fog-resistant olefin polymer films
Patent #: 4486552
Issued on: 12/04/1984
Inventor: Niemann

Olefin polymer compositions containing silicone additives and the use thereof in the production of film material
Patent #: 4535113
Issued on: 08/13/1985
Inventor: Foster ,   et al.

Non-sealable, biaxially oriented multi-layer polypropylene film
Patent #: 4725466
Issued on: 02/16/1988
Inventor: Crass ,   et al.

Propylene polymer film
Patent #: 4769418
Issued on: 09/06/1988
Inventor: Mizuno ,   et al.

Propylene polymer film Patent #: 4966933
Issued on: 10/30/1990
Inventor: Kawakami, et al.

Inventors

Assignee

Application

No. 494404 filed on 03/16/1990

US Classes:

524/310, OH group other than as part of a COOH group, e.g., castor oil, etc.524/313, Fatty acid triglyceride, e.g., drying oil, etc.524/320, Oxygen atom other than as part of a COOH or derivative group524/493, Inorganic silicon-containing material having specified dimensions524/584Inorganic NRM additive other than water

Examiners

Primary: Bleutge, John C.
Assistant: Sweet, Mark D.

Attorney, Agent or Firm

Foreign Patent References

  • 0158140 EP. 10/18/1985
  • 0210750 EP. 02/18/1987
  • 0242055 EP. 10/18/1987
  • 53-54248 JP. 05/18/1978
  • 54-36359 JP. 03/18/1979
  • 60-57459 JP. 12/18/1985
  • 61-36866 JP. 08/18/1986
  • 62-10141 JP. 01/18/1987
  • 62-232448 JP. 10/18/1987
  • 62-233248 JP. 10/18/1987
  • 63-105040 JP. 05/18/1988
  • 63-182212 JP. 07/18/1988
  • 63-58170 JP. 11/18/1988
  • 2201407 GB. 09/18/1988

International Class

C08K 005/10

Foreign Application Priority Data

1989-06-06 JP

Abstract

A propylene polymer film is described which is composed of a composition comprising 100 parts by weight of a propylene polymer, 0.01 to 0.5 part by weight of a fine spherical silica particle and 0.3 to 5.0 parts by weight of hydroxy-fatty acid glyceride. A laminate film including a layer comprised of the above composition is also described. The film has an excellent transparency, gloss, slipperiness and adhesiveness, as well as a good adaptability to vacuum deposition.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?