Hot-melt adhesives

Details Hot-melt adhesives Hot-melt adhesives

1985-10-29

1990-09-11

Carrillo, Ana L.

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

Synthetic resins

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

5254205, 525421, 525434, C08L 7700

Patent

active

049564234

ABSTRACT:
Improved hot melt adhesives comprise a blend of a polyamide and a polyetheramide. The polyamides have the following general structure ##STR1## wherein A is a linear, branched or cyclic aliphatic hydrocarbon radical, which can be substituted with a halogen such as chlorine or bromine, when fire retardant products are desired, and wherein B is a linear or branched, saturated or unsaturated, aliphatic hydrocarbon radical, which can be substituted with halogen such as chlorine or bromine when fire retardant products are desired. The polyamides can also contain a residue of a saturated aliphatic hydrocarbon dicarboxylic acid. The value of x of the polymer formula is generally in the range of 5 to about 500, more usually in the range of about 20 to about 100. The polyetheramides have the following general structure:

REFERENCES:
patent: 4297454 (1981-10-01), Thompson
patent: 4346200 (1982-08-01), Woodbrey
patent: 4409373 (1983-10-01), Wiemers

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