Provided are a reprocessed material of recycled polyvinyl butyral and the method for producing the same. The method comprises steps (A) and (B); step (A): heating a first mixture comprising recycled polyvinyl butyral and an antiblocking agent; and step (B): adding a free radical initiator into the first mixture to undergo a reaction to obtain the reprocessed material of recycled polyvinyl butyral; wherein the free radical initiator comprises an azo compound, an organic peroxide or a combination thereof; the reprocessed material of recycled polyvinyl butyral has a MI of greater than 7 g/10 min at 190° C. and under 2.16 kg of load. The reprocessed material of recycled polyvinyl butyral has excellent reprocessability, so it is applicable to make a hot adhesive and a composite material film.

A method of manufacturing decoration foils and a release layer and an adhesive layer of the decoration foil, and decoration foils manufactured by the same are revealed. First take waste containing polyethylene terephthalate (PET) to react with an alcohol and get a first product. Then the first product is allowed to react with a compound containing isocyanate group and polyol to obtain polyurethane (PU) material. The PU material obtained is used for manufacturing at least one of a release layer and an adhesive of decoration foils to get the decoration foil.

A method of manufacturing decoration foils and a release layer and an adhesive layer of the decoration foil, and decoration foils manufactured by the same are revealed. First take waste containing polyethylene terephthalate (PET) to react with an alcohol and get a first product. Then the first product is allowed to react with a compound containing isocyanate group and polyol to obtain polyurethane (PU) material. The PU material obtained is used for manufacturing at least one of a release layer and an adhesive of decoration foils to get the decoration foil.

A method for synthesising polymers through devulcanisation from waste containing elastomers, the method including: —a) contacting the waste containing elastomers with a solvent in the presence of a devulcanisation agent, b) heating the mixture produced in step a), at a temperature of between 20° C. and 250° C. for a period of between 15 minutes and 24 hours in the presence of a devulcanisation agent, the concentration of devulcanisation agent, and the ratio between the concentration of devulcanisation agent, expressed as parts per hundred of elastomer (phr) and a volume of solvent, expressed in ml, is: greater than 0.3 phr/ml of solvent or less than 0.2 phr/ml of solvent when the method is carried out in air, greater than 0.06 phr/ml of solvent when the method is carried out in an inert atmosphere.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

The invention relates to a process (100) for the recycling of an article based on (meth)acrylic thermoplastic polymer resin, characterized in that it comprises the following steps: introduction (110) of the article into a system suitable for the recycling of thermoplastic polymer, at least partial depolymerization (130) of the (meth)acrylic thermoplastic polymer resin so as to form (meth)acrylate monomers, introduction (140) of a hydrolysis catalyst into a hydrolysis reactor, introduction (150) of water into said hydrolysis reactor, and conversion (160), in the hydrolysis reactor, of at least part of the (meth)acrylate monomers into (meth)acrylic acid. The invention also relates to a system for recycling an article based on (meth)acrylic thermoplastic polymer resin.

The disclosure relates to a recyclable polyester composition including a polyester, an epoxide compound, and optionally a capping agent. The epoxide compound can be a sterically hindered epoxide and/or a polyfunctional epoxide. The capping agent can be selected and included based on its ability to react with in situ-generated hydroxy groups resulting from reaction with the polyester and the epoxide compound. The capping agent is included when the epoxide compound is a polyfunctional epoxide in order to control or limit branching during chain extension. The inclusion of the epoxide compound provides a controlled chain extension of the polyester subjected to thermal processing in a way that controls, limits, or prevents branching and crosslinking, but which also increases polymer molecular weight in a manner that offsets the molecular weight reduction associated with thermal processing in the absence of the disclosed epoxide compounds.

The disclosure relates to a recyclable polyester composition including a polyester, an epoxide compound, and optionally a capping agent. The epoxide compound can be a sterically hindered epoxide and/or a polyfunctional epoxide. The capping agent can be selected and included based on its ability to react with in situ-generated hydroxy groups resulting from reaction with the polyester and the epoxide compound. The capping agent is included when the epoxide compound is a polyfunctional epoxide in order to control or limit branching during chain extension. The inclusion of the epoxide compound provides a controlled chain extension of the polyester subjected to thermal processing in a way that controls, limits, or prevents branching and crosslinking, but which also increases polymer molecular weight in a manner that offsets the molecular weight reduction associated with thermal processing in the absence of the disclosed epoxide compounds.

The present disclosure relates to a composition that includes a lignin-derived mixture that includes at least one of a dimer, a trimer, and/or a tetramer, where the composition is characterized by a thermal stability up to a maximum temperature between about 260° C. and about 300° C.

The present disclosure relates to a composition that includes a lignin-derived mixture that includes at least one of a dimer, a trimer, and/or a tetramer, where the composition is characterized by a thermal stability up to a maximum temperature between about 260° C. and about 300° C.