Abstract: The invention relates to compositions comprising a fiber material and a specific thermoplastic binder. The thermoplastic binder comprises at least one thermoplastic polyurethane polymer (A), wherein said thermoplastic polyurethane polymer (A) comprises a reaction product of (i) at least one polyester polyol and (ii) at least one polyisocyanate, optionally at least one diol (iii) which is different from the polyester polyol (i) is contained. The molar ratio of the NCO groups of said polyisocyanate (ii) to the sum of OH groups of said polyester polyol (i) and said optionally containing diol (iii) is less than 1.00:1. Said polyester polyol (i) comprises (a) at least one semi-crystalline polyester polyol having a melting point (Tm) of from 40 to 180° C., and (b) at least one non-crystalline polyester polyol. Furthermore, the present invention relates to a fiber-reinforced composite comprising a cured thermosetting polyurethane polymer matrix reinforced by the composition according to the present invention.

Abstract: The invention relates to compositions comprising a fiber material and a specific thermoplastic binder. The thermoplastic binder comprises at least one thermoplastic polyurethane polymer (A), wherein said thermoplastic polyurethane polymer (A) comprises a reaction product of (i) at least one polyester polyol and (ii) at least one polyisocyanate, optionally at least one diol (iii) which is different from the polyester polyol (i) is contained. The molar ratio of the NCO groups of said polyisocyanate (ii) to the sum of OH groups of said polyester polyol (i) and said optionally containing diol (iii) is less than 1.00:1. Said polyester polyol (i) comprises (a) at least one semi-crystalline polyester polyol having a melting point (Tm) of from 40 to 180° C., and (b) at least one non-crystalline polyester polyol. Furthermore, the present invention relates to a fiber-reinforced composite comprising a cured thermosetting polyurethane polymer matrix reinforced by the composition according to the present invention.

Abstract: Disclosed is a method for formation of block copolymers using a Single Electron Transfer Living Radical Polymerization (SET-LRP) process. The process can be used to form di and tri-block copolymers from vinyl monomers. In one embodiment the SET-LRP process comprises initially forming a macroinitiator using SET-LRP to form a first block of a di or tri-block copolymer and then using SET-LRP to form additional blocks of the copolymer. The produced block copolymers have very narrow polydispersity indexes and controlled molecular weights. The process permits incorporation of photoinitiators in any of the block formation reactions. The method also includes purification processes that result in a block copolymer having very low color making it useful in a variety of applications. In one application block copolymers prepared according to the present process can be used in hot-melt adhesives.

Abstract: A hot melt adhesive composition comprising a thermoplastic polyurethane copolymer, wherein the thermoplastic polyurethane copolymer comprises a reaction product of at least one polyester polyol; and at least one polyisocyanate; wherein the molar ratio of the NCO groups of the polyisocyanate to the OH groups of the polyester polyol is less than 0.95:1; wherein the viscosity of the thermoplastic polyurethane copolymer is 1,000 to 100,000 mPas at 160° C.; wherein the thermoplastic polyurethane copolymer is thermally stable; and wherein the thermal stability is defined as a viscosity change of less than ±10% compared to the initial viscosity of the thermoplastic polyurethane copolymer after 6 hours at 160° C.

Abstract: The present disclosure relates to a hot melt adhesive composition comprising two thermoplastic polyurethane copolymers (A) and (B), wherein the thermoplastic polyurethane copolymer (A) comprises a reaction product of at least one polyester polyol; and at least one polyisocyanate; and has a number average molecular weight (Mn) of at least 25,000 g/mol; the thermoplastic polyurethane copolymer (B) comprises a reaction product of at least one polyester polyol; and at least one polyisocyanate; and has a number average molecular weight (Mn) of less than 25,000 g/mol; and wherein the hot melt adhesive composition has a melt viscosity of 1,000 to 100,000 mPas at 160° C.

Abstract: The present invention relates to a thermoplastic polyurethane, wherein the thermoplastic polyurethane is obtainable by a method comprising the steps of a) reacting a mixture comprising at least one polyester polyol and at least one polyisocyanate; and b) reacting the reaction product of step a) with at least one substituted or unsubstituted diol which contains at least a primary and a secondary OH group.

Abstract: Disclosed is a method for formation of block copolymers using a Single Electron Transfer Living Radical Polymerization (SET-LRP) process. The process can be used to form di and tri-block copolymers from vinyl monomers. In one embodiment the SET-LRP process comprises initially forming a macroinitiator using SET-LRP to form a first block of a di or tri-block copolymer and then using SET-LRP to form additional blocks of the copolymer. The produced block copolymers have very narrow polydispersity indexes and controlled molecular weights. The process permits incorporation of photoinitiators in any of the block formation reactions. The method also includes purification processes that result in a block copolymer having very low color making it useful in a variety of applications. In one application block copolymers prepared according to the present process can be used in hot-melt adhesives.

Abstract: The invention relates to a thermally reversible hot melt adhesive that is isocyanate-free, moisture independent, crosslinkable and thermally reversible. The thermally reversible hot melt adhesive may be repeatedly heated and cooled without negatively affecting the performance of the adhesive. The thermally reversible composition may also be used as a primer layer. The thermally reversible hot melt adhesive and primer are particularly well suited for end use applications such as packaging, graphic arts, construction, footwear, textiles, general assembly, automotive and consumer goods.

Abstract: Solvent free, moisture curable reactive hot melt adhesives are prepared using an oxazolidine functional prepolymer and a polyfunctional isocyanate.

Abstract: The invention relates to a thermally reversible hot melt adhesive that is isocyanate-free, moisture independent, crosslinkable and thermally reversible. The thermally reversible hot melt adhesive may be repeatedly heated and cooled without negatively affecting the performance of the adhesive. The thermally reversible composition may also be used as a primer layer. The thermally reversible hot melt adhesive and primer are particularly well suited for end use applications such as packaging, graphic arts, construction, footwear, textiles, general assembly, automotive and consumer goods.

Abstract: Solvent free, moisture curable reactive hot melt adhesives are prepared using an oxazolidine functional prepolymer and a polyfunctional isocyanate.

Abstract: Reactive hot melt adhesives compositions with long open time and/or high green strength are prepared by the use of urethane diols. These results are achievable at moderate/low application viscosity or low application temperature.

Abstract: High green strength reactive hot melt adhesives are prepared using acrylic block copolymers.

Abstract: Reactive hot melt adhesives compositions with long open time and/or high green strength are prepared by the use of urethane diols. These results are achievable at moderate/low application viscosity or low application temperature.

Abstract: Reactive hot melt adhesives with long open time and/or high green strength prepared by using an acrylic polymer component containing a high molecular weight acrylic polymer.

Abstract: Compounds and ink compositions. An ink composition comprising a compound of Formula (1) and salts thereof: ##STR1## wherein Ch represents an arrangement of atoms which causes the compound to absorb electromagnetic radiation;R.sup.a and R.sup.b each independently is a spacer group;Y is an interactive functional group;w and x each independently is 0 or an integer equal to or greater than 1; andm and n each independently is an integer equal to or greater than 1, provided that w and x are not both equal to zero and when one of w or x is 0 at least one of m and n is equal to or greater than 2. For use in ink jet printing and electrophotography.

Abstract: A dye diffusion thermal transfer printing dye sheet comprising a substrate having a coating comprising a dye of Formula (1): ##STR1## wherein Ch is a chromogen;R.sup.a and R.sup.b each independently is a spacer group;Y is an interactive functional group selected from the group comprising OH and COOH;w and x each independently is 0 or an integer equal to or greater than 1; andm and n each independently is an integer equal to or greater than 1, provided that w and x are not both equal to 0 and when one of w or x is 0 at least one of m and n is equal to or greater than 2 and when Y represents hydroxy, m+n is greater than 2.

Abstract: A thermal transfer printing dye sheet comprising a substrate, a dye coat comprising a dye and a polymeric binder on the substrate and an over coat of styrene/butadiene copolymer on the dye coat is disclosed.