Isocyanate-based laminating adhesives

Details Isocyanate-based laminating adhesives Isocyanate-based laminating adhesives

2006-02-07

2006-02-07

Sergent, Rabon (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polyamidoester

C156S331400, C156S331700, C206S813000, C428S311710, C428S319300, C428S423500, C428S423700, C428S424200, C428S424400, C428S424600, C428S424800, C428S425100, C428S425800, C528S066000, C528S076000, C528S080000, C528S083000, C528S905000

Reexamination Certificate

active

06994909

ABSTRACT:
The invention relates to a laminating adhesive including a reaction product of at least one polymeric polyol (part A) and at least one NCO terminated polyurethane prepolymer (part B). The part A includes a reaction product of at least one alkylene diol; at least one dial containing a pendant aliphatic chain; and at least one dicarboxylic acid. The part B includes a reaction product of at least one polyether polyol; and at least one polyisocyanate. The adhesive exhibits an initial viscosity of less than about 25,000 mPa.s at about 25° C.

REFERENCES:
patent: 3915935 (1975-10-01), Abraham et al.
patent: 4280979 (1981-07-01), Dunleavy et al.
patent: 4486508 (1984-12-01), Coughlin et al.
patent: 4487909 (1984-12-01), Coughlin et al.
patent: 4994540 (1991-02-01), Boerner et al.
patent: 5278223 (1994-01-01), Gruenewaelder et al.
patent: 6617031 (2003-09-01), Glasbrenner
patent: 590398 (1994-04-01), None

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