Propylene based sealant compositions and applications

Details Propylene based sealant compositions and applications Propylene based sealant compositions and applications

2005-06-14

2005-06-14

Nutter, Nathan M. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S222000, C525S240000, C428S516000, C428S520000

Reexamination Certificate

active

06906140

ABSTRACT:
The present invention relates to a sealant composition comprising i) at least a copolymer of propylene and α-olefins, and ii) at least a copolymer of ethylene and alkyl acrylate, wherein the alkyl acrylate is present in an amount ranging from about 1 to less than 9 weight percent, relative to the weight of the sealant composition. It also relates to a multilayer film or a packaging comprising a sealant layer comprising such a composition.

REFERENCES:
patent: 4588777 (1986-05-01), Hotta
patent: 5272210 (1993-12-01), Galante
patent: 5468259 (1995-11-01), Sheth et al.
patent: 6433088 (2002-08-01), Saraf
patent: 6831131 (2004-12-01), Bouilloux et al.
patent: WO 94/12569 (1994-06-01), None
PCT International Search Report, International application No. PCT/US 03/14208, dated Jul. 30, 2003.

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