Packaged glass sealants

Details Packaged glass sealants Packaged glass sealants

2007-04-02

2011-10-25

Mulcahy, Peter D (Department: 1762)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C524S574000, C524S524000, C524S505000, C524S525000, C524S523000, C524S522000, C524S528000, C524S519000, C524S514000

Reexamination Certificate

active

08043675

ABSTRACT:
A packaged glass sealant product, is formed of a sealant composition having a processing temperature in the range of from greater than 70° C. up to 220° C. and a skin of thermoplastic polymeric material around said sealant composition. The skin constitutes no more than 10 wt % of the total weight of said product, and said polymeric material has a minimum film forming temperature of at least 50° C. and a softening point which is lower than the processing temperature for application of said sealant composition by a difference of more than 10° C. The product alleviates the necessity of disposing of non-recyclable, silicone coated packaging by environmentally unfriendly methods in particular land-fill.

REFERENCES:
patent: 4169822 (1979-10-01), Kutch et al.
patent: 5301835 (1994-04-01), Fulks et al.
patent: 5373682 (1994-12-01), Hatfield et al.
patent: 5632122 (1997-05-01), Spinks
patent: 6121354 (2000-09-01), Chronister
patent: 0 469 564 (1992-02-01), None
patent: 0 957 029 (1999-11-01), None
patent: WO 2004/081138 (2004-09-01), None

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