Hot melt adhesive compositions

Details Hot melt adhesive compositions Hot melt adhesive compositions

1984-01-09

1986-04-08

Bleutge, John C.

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

Synthetic resins

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

525167, C08L 7712

Patent

active

045814104

ABSTRACT:
Crystallizable hot melt adhesive compositions comprising block copolyesteramides and alkali metal salts of carboxy polymers. The block copolyesteramides comprise hard or crystalline polyester blocks and soft or amorphous polyamide blocks in the weight ratio of 2:3 to 4:1. The alkali metal salts are salts of copolymers of C.sub.1 to C.sub.4 aliphatic olefins and acrylic or methacrylic acid or salts of copolymers of aromatic olefins and maleic anhydride and provide a concentration of alkali metal cation in the range of 0.1 to 15 meq per 100 parts by weight of copolyesteramide. The hot melt adhesive compositions are useful for bonding plastic parts to form plastic structures which are relatively free of bond line distortion.

REFERENCES:
patent: 3435093 (1969-03-01), Cope
patent: 3634543 (1972-01-01), Sherman
patent: 3639527 (1972-02-01), Brinkmann
patent: 3645932 (1972-02-01), Harrison
patent: 3650999 (1972-03-01), Martins
patent: 3755221 (1973-08-01), Hitch
patent: 4130603 (1978-12-01), Tanaka
patent: 4322335 (1982-03-01), Nield
patent: 4351757 (1982-09-01), Hoeschele
patent: 4363892 (1982-12-01), Shain
patent: 4412040 (1983-10-01), Albee

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