Abstract: A propylene-graft-unsaturated polyester is disclosed comprising the reaction product of a polypropylene, an unsaturated polyester and a free radical initiator. The polypropylene-graft-unsaturated polyester is generally prepared by reacting at elevated temperatures using a peroxide. The polypropylene-graft-unsaturated polyester is very useful as a compatibilizing agent in blends of polyester and ethylene-propylene rubber to improve the impact strength of the polyester.

Abstract: A propylene-graft-unsaturated polyester is disclosed comprising the reaction product of a polypropylene, an unsaturated polyester and a free radical initiator. The polypropylene-graft-unsaturated polyester is generally prepared by reacting at elevated temperatures using a peroxide. The polypropylene-graft-unsaturated polyester is very useful as a compatibilizing agent in blends of polyester and ethylene-propylene rubber to improve the impact strength of the polyester.

Abstract: This invention relates to compositions containing poly(1,4-cyclohexylenedimethylene terephthalate) (PCT) or copolyesters from terephthalic acid, 1,4-cyclohexanedimethanol and ethylene glycol, having improved impact strength at low temperatures due to the presence of an ethylene copolymer which contains repeat units from ethylene and at least 5 mole percent of a free radical polymerizable comonomer selected from the group consisting of vinyl acetate and an alkyl acrylate.

Abstract: A dimensionally stable polyester melt blown web composition is disclosed. The polyester melt blown web is obtained by contacting the web with a solvent, and drying the web. The solvents which are used have total solubility parameters (S.sub.o) of 8.5 to 12.0 (cal/cm.sup.3).sup.1/2, solubility parameter component due to hydrogen bonding (S.sub.h) of 0.5 to 5.5 (cal/cm.sup.3).sup.1/2 and solubility parameter component due to polar forces (S.sub.p) of 0.5 to 7.0 (cal/cm.sup.3).sup.1/2). The polyesters used for such melt blown webs include poly(ethylene-terephthalate), poly(cyclohexylene dimethylene terephthalate) and blends and copolymers of these polymers.

Abstract: Disclosed are certain polyester adhesive blend compositions comprising about 45-90 wt. percent of a copolyester, about 3-15 wt. percent of a plasticizer, and about 7-40 wt. percent of a tackifying resin. The blends are particularly useful in hot-melt glue gun applications.

Abstract: Disclosed are certain copolyesters comprising an acid component of (1) 60 to 75 mol % of terephthalic acid, and (2) 25 to 40 mol % of a dicarboxylic acid, and a glycol component of (1) 55 to 65 mol % 1,4-butanediol, and (2) 35 to 45 mol % one or more other aliphatic diols. The copolyester or formulation thereof with a tackifying resin has excellent properties for use as a glue gun adhesive.

Abstract: Disclosed are hot-melt adhesive compositions comprising discrete particles of polyester adhesives, discrete particles of polyester containing a halogenated organic compound and discrete particles containing an antimony compound. Also disclosed is a method of incorporating both a halogenated organic compound and an antimony compound into a polyester adhesive composition.

Abstract: Disclosed are low-melting blends of polyesters and polyethylene glycols which are useful as adhesives.

Abstract: Disclosed are blends of polyesters and esters of glycerin or propylene glycol which are useful as hot-melt adhesives for fabrics.

Abstract: Disclosed is an adhesive composition comprising:(a) an amorphous or a crystallizable polyester having a melting point of about 80.degree. C. to about 230.degree. C. and a heat of fusion of 0 to about 18 calories per gram, and(b) from about 1 to about 35% by weight of a compound selected from the group consisting of ##STR1## wherein R.sub.1 is benzyl or phenyl and R.sub.2 is benzyl, phenyl or an alkyl group containing 1 to 10 carbon atoms, and ##STR2## wherein R.sub.3 is phenyl or benzyl, R.sub.4 is phenyl or benzyl and R.sub.5 is an alkyl group containing 1 to 10 carbon atoms.

Abstract: Disclosed are plastisol compositions comprising a poly(vinyl chloride) resin, a plasticizer for the resin in an amount sufficient to form a plastisol, and from about 4 to about 20% by weight, based on the weight of the composition, of a saturated, thermoplastic polyester dispersed in the plastisol, the polyester being in particulate form, having a melting point of about 70.degree. to about 200.degree. C., a heat of fusion of about 10 calories per gram or less, and an inherent viscosity of about 0.3 to about 1.0.

Abstract: This invention is directed to blends of polymers of 2-substituted norbornenes such as poly(2-methoxycarbonyl-5-norbornene) and plasticized poly(vinyl chloride). These blends provide plasticized poly(vinyl chloride) compositions having high clarity as well as improved low temperature flexibility and improved low temperature impact strength.

Abstract: Disclosed are polymer compositions comprising from about 75 to about 99% by weight of the reaction product of(a) from about 50 to about 90% by weight, based on the weight of the reaction product, of an ethylenically unsaturated polyester derived from an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid with a saturated aliphatic polyol, and(b) from about 50 to about 10% by weight, based on the weight of the reaction product, of a modified polyolefin derived from an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid anhydride and a polyolefin.The compositions preferably include from about 25 to about 1% by weight of a polymer or copolymer of an olefin in the reaction product, the polymer or copolymer having a molecular weight of from about 500 to about 50,000.

Abstract: The hot-melt adhesives of the present invention comprise a blend of poly(propylene-co-higher 1-olefin), tackifying resin and crystalline propylene containing polymer. These hot-melt adhesive compositions have a novel combination of properties including strong T-peel and lap shear bonds to both low- and high-density polyethylene with excellent creep resistance at ambient temperatures. Therefore, these new hot-melt adhesives are excellent adhesives for applications such as sealing high-density polyethylene grocery bags and low-density shipping bags.

Abstract: The hot-melt adhesives of the present invention comprise a blend of polyethylene, tackifier resin, and ethylene-alkyl acrylate or alkenyl carboxylate copolymers. These adhesive compositions have low melt viscosities, good flexibility at 20.degree. F., and provide good page pull and page flex values on books bound with these adhesives. Therefore, these adhesive compositions are useful as hot-melt adhesives for use in bookbinding applications.

Abstract: The hot melt adhesives of the present invention comprise a blend of polyethylene, amorphous polypropylene and crystalline propylene containing polymer. These hot-melt adhesive compositions have a novel combination of properties such as short hot tack times and open times for the bonding of paraffin-modified corrugated board.

Abstract: The hot melt adhesives of the present invention comprise a blend of at least one polyethylene, a tackifying resin, and a Fischer-Tropsch hydrocarbon wax. This hot melt adhesive has a novel combination of properties which meet the requirements necessary for use in rapid bonding or closing applications.