Abstract: A composition comprises a polyol and a polyethylenimine compound. A method for reducing the volatile aldehyde content of a polyol comprises the steps of: (a) providing a polyol, the polyol containing a first amount of volatile aldehyde compounds; (b) providing a polyethylenimine compound; and (c) adding the polyethylenimine compound to the polyol to produce a composition.

Abstract: The present invention relates to a method for drafting spun yarns in three stages. The method comprises drafting fiber strips to obtain fiber strands in the first-stage draft zone, drafting fiber strands to obtain non-discrete fiber bands without twist distribution in the second-stage draft zone, and drafting fiber bands to obtain twist less fiber assemblies in the third-stage draft zone. The present invention can significantly improve the maximum total draft ratio to obtain twist less fiber assemblies with good evenness and can help improve the quality of resultant yarns.

Abstract: The present invention relates to a method and spinning device for drafting single yarns. The method comprises drafting fiber strands into twistless fiber strands, bringing a primary twist action upon fiber strands in the vortex twist zone, integrating and compressing fiber strands on the suction member to form column fiber strands, outputting column fiber strands and twisting them into spun yarns. The spinning device comprises a drafting mechanism with suction members, wherein the front drafting pair consists of a front rubber roller, a block rubber roller, and a suction member, an air guide member is installed on the suction member, and the block. rubber roller, air guide member, and the suction member jointly form a vortex twist zone which fiber strands can pass through.

Abstract: Novel coated substrates comprise a substrate and a coating thereon. The coating comprises a polymeric component and a colorant compound. The colorant compound is produced by reacting an isocyanate compound and an active hydrogen-terminated colorant.

Abstract: Substituted alditol or carbohydrate compounds having a specified general formula are provided. A method for synthesizing such substituted alditol or carbohydrate compounds is also provided.

Abstract: The present invention relates to dibenzylidene sorbitol (“DBS”)-based compounds. The compounds of this invention are particularly advantageous in that they are characterized by one or more of improved transparency (reduced haze), reduced yellowing and/or improved organoleptics (taste). According to one embodiment, the present invention provides a disubstituted DBS-based compound having an allyl group or a propyl group substituted on the first carbon of the sorbitol chain. The present invention also relates to compositions comprising such DBS-based compounds and methods for using them.

Abstract: Substituted alditol or carbohydrate compounds having a specified general formula are provided. A method for synthesizing such substituted alditol or carbohydrate compounds is also provided.

Abstract: An inventive blue colorant comprising a chromophore having at least one hydroxy group-terminated polyester chain attached, through a suitable alkylamino linking group (or groups), to the 1-position, the 4-position, or both, of an anthraquinone backbone is provided. Such colorants exhibit excellent amine/base stability and thermal stability, effective colorations, excellent low extraction rates, and high lightfastness levels, particularly when incorporated within certain media and/or on the surface of certain polyurethane substrates. The polyester chain or chains can be conveniently tailored to increase the solubility or compatibility in different types of polyurethane resin precursors thereby permitting the introduction of such excellent coloring chromophores within diverse polyurethane media and/or or diverse polyurethane substrates as well as provides a liquid colorant which facilitates handling.

Abstract: The present invention relates to dibenzylidene sorbitol (“DBS”)-based compounds. The compounds of this invention are particularly advantageous in that they are characterized by one or more of improved transparency (reduced haze), reduced yellowing and/or improved organoleptics (taste). According to one embodiment, the present invention provides a disubstituted DBS-based compound having an allyl group or a propyl group substituted on the first carbon of the sorbitol chain. The present invention also relates to compositions comprising such DBS-based compounds and methods for using them.

Abstract: An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compound may be employed as an additive in a plastic composition, such as (for example) a polypropylene copolymer. One structure of such an acetal-based composition is provided by the formula: wherein: n is 0, 1 or 2; Ar1 and Ar2 are independently selected from substituted or unsubstituted aryl-containing groups; and R is selected from the group consisting of: alkenyls, alkyls, alkoxy, hydroxyl alkyls, and alkyl-halides.

Abstract: An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compound may be employed as an additive in a plastic composition, such as (for example) a polypropylene copolymer. Co-additives may also be employed. Several aryl structures may reside upon the hydrocarbon chain backbone. One structure of such an acetal-based composition which happens to have two aryl-containing groups is shown: wherein: n is 0, 1 or 2; Ar1 and Ar2 are independently selected from substituted or unsubstituted aryl-containing groups; and R is selected from the group consisting of: alkenyls, alkyls, alkoxy, hydroxyl alkyls, and alkyl-halides.

Abstract: An acetal compound may be formed by the method of reacting a substitiuted or unsubstituted benzaldehyde, a polyhydric alcohol, and an at least one acid catalyst at ambient temperatures, in a homogenous reaction media in the presence of at least one water miscible organic solvent. The molar ratio of the acid catalyst to the benzaldehyde may be less than about 0.6 to 1, respectively, of acid catalyst to benzaldehyde.

Abstract: An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compound may be employed as an additive in a plastic composition, such as (for example) a polypropylene copolymer. Co-additives may also be employed. Several aryl structures may reside upon the hydrocarbon chain backbone. One structure of such an acetal-based composition which happens to have two aryl-containing groups is shown: wherein: n is 0, 1 or 2; Ar1 and Ar2 are independently selected from substituted or unsubstituted aryl-containing groups; and R is selected from the group consisting of: alkenyls, alkyls, alkoxy, hydroxyl alkyls, and alkyl-halides.

Abstract: An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compound may be employed as an additive in a plastic composition, such as (for example) a polypropylene copolymer. One structure of such an acetal-based composition is provided by the formula: wherein: n is 0, 1 or 2; Ar1 and Ar2 are independently selected from substituted or unsubstituted aryl-containing groups; and R is selected from the group consisting of: alkenyls, alkyls, alkoxy, hydroxyl alkyls, and alkyl-halides.

Abstract: An inventive blue colorant comprising a chromophore having at least one hydroxy group-terminated polyester chain attached, through a suitable alkylamino linking group (or groups), to the 1-position, the 4-position, or both, of an anthraquinone backbone is provided. Such colorants exhibit excellent amine/base stability and thermal stability, effective colorations, excellent low extraction rates, and high lightfastness levels, particularly when incorporated within certain media and/or on the surface of certain polyurethane substrates. The polyester chain or chains can be conveniently tailored to increase the solubility or compatibility in different types of polyurethane resin precursors thereby permitting the introduction of such excellent coloring chromophores within diverse polyurethane media and/or or diverse polyurethane substrates as well as provides a liquid colorant which facilitates handling.