Abstract: Disclosed herein are a method for removal of additives from a polymeric material, a polyalkylene terephthalate based polymer obtained from the method, a method of using the polyalkylene terephthalate based polymer for textile applications, fiber applications, packaging applications, plastic applications, automotive applications, or electronic applications a method for preparing a product including an electronic part from the polyalkylene terephthalate based polymer, a method including converting the polyalkylene terephthalate based polymer obtained by the method to obtain a polymer product, and a method including converting a residue obtained by the method and/or converting an elastic fiber residue obtained by the method to obtain one or more monomer, polymer or polymer product.

Abstract: Disclosed herein is a process for recycling of a colored polymeric material, where the colored polymeric material includes a polyalkylene terephthalate based polymer, and a colorant, the process including providing a colored polymeric material and a solvent system including gamma valerolactone (GVL); contacting the colored polymeric material with the solvent system including GVL provided under conditions allowing for colorant removal but not allowing for dissolution of the polyalkylene terephthalate based polymer, thereby obtaining a solvent system enriched in colorant and a polymeric material depleted in colorant; depolymerization or transesterification of the colorant-depleted polymeric material; thereby obtaining monomers, oligomers, or transesterification products.

Abstract: Disclosed herein are a process for recovery of a polyethylene terephthalate based polymer from a polymeric material, a polyalkylene terephthalate based polymer obtained from the process, and a method of using the polyalkylene terephthalate based polymer for textile applications, fiber applications, packaging applications, plastic applications, automotive applications, and electronic applications. The process may include a further step of converting a residue to obtain one or more monomer(s), polymer(s) or polymer product(s). Also disclosed herein is a method for preparing a product including: providing a polyalkylene terephthalate based polymer; and preparing a textile, a fiber, a packaging, a plastic, an automotive part, or an electronic part from the polyalkylene terephthalate based polymer.

Abstract: Disclosed herein is a method for separating a polymer blend, where the polymer blend includes (i) a polyamide and/or a cellulose based polymer, (ii) an elastic fiber: the method including: (a) providing the polymer blend and providing a solvent including gamma-valerolactone; and (b) contacting the polymer blend with the solvent including gamma-valerolactone at a temperature T1 of <170° C., thereby obtaining a solvent, which is enriched in dissolved elastic fiber, and a residue of the polymer blend, which is depleted of said elastic fiber and includes the polyamide and/or the cellulose based polymer. Further disclosed herein is a polyamide and/or cellulose based polymer obtained from the method. Additionally disclosed herein are a method of using the cellulose based polymer and a method of using the polyamide polymer.

Abstract: A method prepares a curable composition based on ground composite material from the recycling of discarded composite elements such as old pipes or rotor blades of wind power plants. The ground composite material allows for the replacement of virgin short glass fibers and fumed silica commonly employed in such compositions used as structural adhesives essentially without any negative impact on the performance.

Abstract: A bonding process is described in which two substrates are bonded together by applying to the surface of at least one of the substrates a curable, not yet cured 2-component adhesive that comprises, in a first component, a compound A having at least one defined cyclic thiocarbonate unit having a five-membered ring structure and, in a second component, a curing compound B selected from compounds having at least one functional group selected from primary amine groups and secondary amine groups.

Abstract: A process can be used for the synthesis of compounds containing at least one non-cyclic carbonate group, wherein a compound A) containing at least one five-membered cyclic monothiocarbonate group is reacted with at least one hydroxy group of a compound B) or of compound A) itself.

Abstract: A process reduces the odor of compounds with al least one five-membered cyclic monothiocarbonate group, referred to as monothiocarbonate compounds. The monothiocarbonate compounds are in are liquid phase and are brought into contact with an oxidant.

Abstract: Described herein is a method for separating a polymer blend, which includes (i) a polyester and (ii) one or more component(s) selected from the group consisting of a second polymer, a third polymer and a filler, where second polymer and third polymer are different from each other and different from the polyester of (i). Also described herein is a polyester obtained from the method. Also described herein is a method of using the polyester obtained from the method for textile applications, fiber applications, packaging applications, plastic applications, automotive applications, or electronic applications. Also described herein is a method for preparing a product, based on the polyester obtained from the method.

Abstract: The present disclosure relates to a process preparing a zeolitic material having an AEI-type framework structure, wherein the framework structure comprises SiO2 and X2O3 and X is a trivalent element, and wherein the process comprises: (1) preparing a mixture comprising one or more cationic structure directing agents comprising a heterocyclic amine ring, seed crystals, and a first zeolitic material comprising SiO2 and X2O3 in its framework structure and having an FAU-type framework structure; and (2) heating the mixture to obtain a second zeolitic material comprising SiO2 and X2O3 in its framework structure and having an AEI-type framework structure.

Abstract: Provided is a process for the preparation of a compound with at least one five-membered cyclic monothiocarbonate group. A compound C1 with at least one halohydrin group is used as starting material. Compound C1 is reacted with phosgene or an alkyl chloroformate to give an adduct C2. The adduct C2 is reacted with a compound that includes anionic sulfur to obtain the compound with at least one five-membered cyclic monothiocarbonate group.

Abstract: A process for preparing coatings or sealed materials using a coating composition or a sealant that contains a first component and a second component. The first component includes a compound A) with at least one five-membered cyclic monothiocarbonate group. The second component includes a compound B) with at least one amino group. The at least one amino group can be a primary or secondary amino group or blocked primary or secondary amino group. Compounds A) or B) may additionally have at least one polymerizable, ethylenically unsaturated group. The coating composition or sealant may further include a compound C) with at least one polymerizable, ethylenically unsaturated group.

Abstract: A method prepares a curable composition based on ground composite material from the recycling of discarded composite elements such as old pipes or rotor blades of wind power plants. The ground composite material allows for the replacement of virgin short glass fibers and fumed silica commonly employed in such compositions used as structural adhesives essentially without any negative impact on the performance.

Abstract: The present disclosure relates to a process preparating a zeolitic material having an AEI-type framework structure, wherein the framework structure comprises SiO2 and X2O3 and X is a trivalent element, and wherein the process comprises: (1) preparing a mixture comprising one or more cationic structure directing agents comprising a heterocyclic amine ring, seed crystals, and a first zeolitic material comprising SiO2 and X2O3 in its framework structure and having an FAU-type framework structure; and (2) heating the mixture to obtain a second zeolitic material comprising SiO2 and X2O3 in its framework structure and having an AEI-type framework structure.

Abstract: The present invention relates to a process for the preparation of a polyarylether copolymer (P), the polyarylether copolymer (P) obtained by the process and a process for the preparation of a membrane comprising the polyaryl-ether copolymer (P) and the membrane itself.

Abstract: In a first aspect, the invention relates to a process for discoloration of a colored polymeric material comprising: (i) providing a colored polymeric material and providing a solvent comprising gamma-valerolactone: (ii) contacting the colored polymeric material with a solvent comprising gamma-valerolactone at a temperature in the range of from 40 to 170° C. thereby obtaining a solvent, which is enriched in colorant compared to the solvent provided in (i), and a polymeric material, which is depleted in colorant compared to the colored polymeric material provided in (i). A second aspect of the invention is related to a polymeric material, which is depleted in colorant obtained or obtainable from the process of the first aspect. In a third aspect, the invention is related to a use of the polymeric material, which is depleted in colorant according to the second aspect for textile applications, fiber applications, packaging applications or plastic applications.

Abstract: The invention relates to a process for producing 4,4?-dichlorodiphenyl sulfoxide comprising: (I) reacting thionyl chloride, chlorobenzene and aluminum chloride in a molar ratio of thionyl chloride:chlorobenzene:aluminum chloride of 1:(6 to 9):(1 to 1.5) at a temperature in the range from 0 to below 20° C., forming an intermediate reaction product and hydrogen chloride; (II) mixing aqueous hydrochloric acid and the intermediate reaction product at a temperature in the range from 70 to 110° C.

Abstract: A process for the manufacturing of a polymer with urethane groups can be performed. In a first alternative a five-membered cyclic monothiocarbonate, a compound with at least two amino groups selected from primary or secondary amino groups, and a compound with at least two function groups that react with a —SH group are reacted. In a second alternative a five-membered cyclic monothiocarbonate and a compound with at least one primary or secondary amino group, and at least one function group that reacts with an —SH group are reacted.

Abstract: A polymer obtainable by reacting a compound A) comprising at least one five-membered cyclic monothiocarbonate group and at least one polymerizable, ethylenically unsaturated group, a compound B) comprising at least one amino group, selected from primary or secondary amino groups, optionally a compound C) which is different from compound A) and comprises at least one five-membered cyclic monothiocarbonate group, and optionally a compound D) which is different from compound A) and comprises at least one functional group that reacts with a group —SH.

Abstract: A compound of formula IVa includes two or three R1a to R4a groups which represent hydrogen, and the R1a to R4a groups not being hydrogen represent a group CH2—O—R6, CH2—O—C(?O)—R7, or —CH2—NR8R9, with R6 to R9 being a linear or branched alkyl group, alkoxy group, polyalkoxy group, or alkenyl group with at maximum 30 carbon atoms.