Polyester adhesives

Details Polyester adhesives Polyester adhesives

C - Chemistry, Metallurgy

08

K

400/7653

C08K 5/04 (2006.01) C08L 67/02 (2006.01) C09J 3/16 (1980.01)

Patent

CA 1147880

POLYESTER ADHESIVES ABSTRACT OF THE DISCLOSURE Disclosed are adhesive compositions which are solid but spreadable to form a coating on substrates. Solutions of the adhesive composition are formed into a gel in a useful form such as a stick. The adhesive composition comprises dibenzal sorbitol gelling agent and polyesters derived from components (A), (B) and (C) as follows: (A) at least one dicarboxylic acid, (B) at least one diol, at least 20 mole percent of the diol com- ponent being a poly(ethylene glycol) having the formula H(OCH2-CH2)n-OH wherein n is an integer of from 2 to about 10, and (C) at least one difunctional dicarboxylic acid sulfomonomer con- taining a -SO3M group attached to an aromatic nucleus, wherein M is hydrogen or Na+, Li+, K+, or a combination thereof, the sulfomonomer component constituting at least about 8 mole percent to about 45 mole percent of the sum of the moles of said components (A) and (C).

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