Hot melt adhesive compositions

Claim 2

AN ADHESIVE COMPOSITION COMPRISING A. FROM ABOUT 95 TO ABOUT 60 PERCENT BY WEIGHT OF A POLY(ESTERAMIDE) BLOCK COPOLYMER HAVING FROM ABOUT 45 TO ABOUT 95 PERCENT BY WEIGHT OF CRYSTALLINE POLYESTER SEGMENTS DERIVED FROM AT LEAST ONE ALIPHATIC OR ALICYCLIC GLYCOL HAVING FROM 2 TO 10 CARBON ATOMS AND AT LEAST ONE DICARBOXYLIC ACID HAVING FROM 2 TO 20 CARBON ATOMS, AND FROM ABOUT 55 TO ABOUT 5 PERCENT BY WEIGHT OF AMORPHOUS POLYAMIDE SEGMENTS DERIVED FROM A DIMER ACID AND AN ALIPHATIC PRIMARY DIAMINE CONTAINING 2 TO 10 CARBON ATOMS, AND B. FROM ABOUT 5 TO ABOUT 40 PERCENT BY WEIGHT OF A VINYL AROMATIC POLYMER OF WHICH AT LEAST 50 PERCENT BY WEIGHT OF ITS POLYMERIC UNITS ARE DERIVED FROM AT LEAST ONE MONOMER HAVING THE FORMULA

Claim 3

An adhesive composition according to claim 1 wherein said vinyl aromatic polymer is polystyrene.

Claim 4

An adhesive composition according to claim 1 wherein said dicarboxylic acid is at least 80 percent terephthalic acid.

Claim 5

An adhesive composition according to claim 1 wherein said diamine is 1,6-hexanediamine.

Claim 6

An adhesive composition according to claim 1 wherein said poly(ester-amide) has from about 50 to about 80 percent by weight crystalline polyester segments and from about 50 to about 20 percent by weight amorphous polyamide segments.

Claim 7

An adhesive composition according to claim 1 comprising about 95 to about 75 percent poly(ester-amide) and about 5 to about 25 percent vinyl aromatic polymer.

Claim 8

An adhesive composition comprising a. from about 75 to about 95 percent by weight of a poly(esteramide) having from about 50 to about 80 percent by weight of crystalline polyester segments derived from at least one aliphatic or alicyclic glycol having from 2 to 6 carbon atoms and at least one dicarboxylic acid, at least 80 percent of which is terephthalic, and from about 50 to about 20 percent by weight of amorphous polyamide segments derived from a dimer acid and 1,6-hexanediamine, b. from about 25 to about 5 percent by weight of a vinyl aromatic polymer of which at least 50 percent by weight of its polymeric units are derived from at least one monomer having the formula

Claim 9

An adhesive composition comprising a. from about 75 to about 95 percent by weight of a poly(esteramide) having from about 50 to about 80 percent by weight of crystalline polyester segments derived from at least one aliphatic or alicyclic glycol having from 2 to 6 carbon atoms and at least one dicarboxylic acid, at least 80 percent of which is terephthalic, and from about 50 to about 20 percent by weight of amorphous polyamide segments derived from a dimer acid and 1,6-hexanediamine, b. from about 25 to about 5 percent by weight of a vinyl aromatic polymer of which at least 50 percent by weight of its polymeric units are derived from at least one monomer having the formula

Claim 10

An adhesive composition according to claim 7 wherein said vinyl aromatic polymer is polystyrene.

Claim 11

An article of manufacture comprising a pair of substrates bonded together with a composition comprising a. from about 95 to about 60 percent by weight of a poly(ester-amide) block copolymer having from about 45 to about 95 percent by weight of crystalline polyester segments derived from at least one aliphatic or alicyclic glycol having from 2 to 10 carbon atoms and at least one dicarboxylic acid having from 2 to 20 carbon atoms, and from about 55 to about 5 percent by weight of amorphous polyamide segments derived from a dimer acid and an aliphatic primary diamine containing 2 to 10 carbon atoms, and b. from about 5 to about 40 percent by weight of a vinyl aromatic polymer of which at least 50 percent by weight of its polymeric units are derived from at least one monomer having the formula

Claim 12

An article of manufacture comprising a pair of substrates bonded together with a composition comprising a. from about 95 to about 60 percent by weight of a poly(ester-amide) block copolymer having from about 45 to about 95 percent by weight of crystalline polyester segments derived from at least one aliphatic or alicyclic glycol having from 2 to 10 carbon atoms and at least one dicarboxylic acid having from 2 to 20 carbon atoms, and from about 55 to about 5 percent by weight of amorphous polyamide segments derived from a dimer acid and an aliphatic primary diamine containing 2 to 10 carbon atoms, and b. from about 5 to about 40 percent by weight of a vinyl aromatic polymer of which at least 50 percent by weight of its polymeric units are derived from at least one monomer having the formula

Claim 13

An article of manufacture according to claim 9 wherein said vinyl aromatic polymer is polystyrene.

Claim 14

An article of manufacture according to claim 9 wherein said dicarboxylic acid is at least 80 percent terephthalic acid.

Claim 15

An article of manufacture according to claim 9 wherein said diamine iS 1,6-hexanediamine.

Claim 16

An article of manufacture according to claim 9 wherein said poly(ester-amide) has from about 50 to about 80 percent by weight crystalline polyester segments and from about 50 to about 20 percent by weight amorphous polyamide segments.

Claim 17

An article of manufacture according to claim 9 wherein said composition comprises about 95 to about 75 percent poly(ester-amide) and about 5 to 25 percent vinyl aromatic polymer.

Claim 18

An article of manufacture comprising a pair of substrates bonded together with a composition comprising a. from about 75 to about 95 percent by weight of a poly(ester-amide) having from about 50 to about 80 percent by weight of crystalline polyester segments derived from at least one aliphatic or alicyclic glycol having from 2 to 6 carbon atoms and at least one dicarboxylic acid, at least 80 percent of which is terephthalic, and from about 50 to about 20 percent by weight of amorphous polyamide segments derived from a dimer acid and 1,6-hexanediamine, b. from about 25 to about 5 percent by weight of a vinyl aromatic polymer of which at least 50 percent by weight of its polymeric units are derived from at least one monomer having the formula

Claim 19

An article of manufacture comprising a pair of substrates bonded together with a composition comprising a. from about 75 to about 95 percent by weight of a poly(ester-amide) having from about 50 to about 80 percent by weight of crystalline polyester segments derived from at least one aliphatic or alicyclic glycol having from 2 to 6 carbon atoms and at least one dicarboxylic acid, at least 80 percent of which is terephthalic, and from about 50 to about 20 percent by weight of amorphous polyamide segments derived from a dimer acid and 1,6-hexanediamine, b. from about 25 to about 5 percent by weight of a vinyl aromatic polymer of which at least 50 percent by weight of its polymeric units are derived from at least one monomer having the formula

Claim 20

An article according to claim 15 wherein said vinyl aromatic polymer is polystyrene.

Claim 21

The method of bonding a pair of substrates together comprising applying evenly to at least one of said substrates the molten composition of claim 1, pressing the substrates together with adhesive in the middle, and allowing said substrates to cool.

Claim 22

The method of bonding a pair of substrates together comprising applying evenly to at least one of said substrates the molten composition of claim 15, pressing the substrates together with adhesive in the middle and allowing said substrates to cool.