Abstract:
The invention relates to bio-based polymer based on at least two different bio-based monomers obtained from biomass-containing carbohydrates, wherein at least one bio-based monomer is a furan derivative according to formula (I). In each case, independently of one another, R1 is a hydrogen or an organofunctional group with 1 to 20 C atoms and optionally, the organofunctional group contains O, N, or S atoms; R2 is an organofunctional group with 1 to 20 C atoms, which optionally contains O, N, or S atoms, the second bio-based monomer is a hydroxyl-functional compound comprising from 1 to 100 C atoms. The polymer has an average molecular weight Mw greater than or equal to 1,000 g/mol, and the proportion of bio-based monomers in the bio-based polymer is greater than or equal to 55 mol-% with respect to all monomers of the polymer.
Abstract:
To provide a polybutylene terephthalate resin composition offering excellent flowability, wherein the resin composition raises the weld strength and heat shock resistance of a welded body obtained by welding together molded products obtained by molding the polybutylene terephthalate resin composition.[Solution] A polybutylene terephthalate resin composition comprising a polybutylene terephthalate resin (A) having a weight-average molecular weight of 60,000-80,000 inclusive and an inorganic filler (B). Preferably, also included is 5-20 mass parts of an elastomer (C) relative to 100 mass parts of the polybutylene terephthalate resin (A).
Abstract:
Polyester polyols are generally disclosed, including methods of making and using them. In some embodiments, the polyester polyols are incorporated into a block copolymer, such as a polyurethane block copolymer. In some embodiments, the polyurethane block copolymers can be used as compatibilizing agents, which can be used, for example, in polymer blends, polymer alloys, solutions, emulsions, as well as in extruded and injection molded articles. In some embodiments, at least a portion of the polyurethane block copolymer is derived from a renewable source.
Abstract:
A method of producing an energetic polymer comprises reacting at least one energetic diol with at least one of a diacid halide and a diacid halide derivative to produce a geminal dinitro polyester. A method of producing an energetic binder, and a method of producing an energetic composition are also described.
Abstract:
A fiber formed from a resin that degrades in treatment fluid for hydrocarbon resource recovery, an oligomer component content of a resin forming an outer surface of the fiber being not greater than 1 mass %, and a birefringence of the fiber being not less than 0.02; a method for manufacturing a degradable fiber for use in well treatment fluid, the oligomer component content of a resin that forms an outer surface of an undrawn yarn obtained in a spinning step being not greater than 1 mass %, and a birefringence of a drawn yarn before heat treatment in a drawing step being not less than 0.02; and a well treatment method using the well treatment fluid containing the degradable fiber for use in well treatment fluid and a proppant.
Abstract:
The invention provides a process for the preparation of monoethylene glycol from sucrose comprising the steps of: i) hydrolysing sucrose to form a reaction product stream comprising glucose and fructose; ii) separating the reaction product stream comprising glucose and fructose into a fructose or fructose derivative rich stream and a glucose rich stream; and iii) contacting the glucose rich stream with hydrogen in a reactor in the presence of a solvent and a catalyst system with catalytic hydrogenation abilities to produce a product stream comprising monoethylene glycol.
Abstract:
The present invention relates to a polycarboxylic acid anhydride having a structural unit represented by the following Formula (1). The present invention provides a novel polycarboxylic acid anhydride. When the polycarboxylic acid anhydride is used, for example, as an epoxy resin-curing agent, the balance of the composition of the resin composition is stabilized, and a resin molded article having excellent heat resistance, transparency, thermal yellowing resistance, surface hardness, solvent resistance, flexibility, and adhesiveness is thus provided.
Abstract:
Provided is a polymer compound having a furan ring having a degree of polymerization of 185 or more and 600 or less. This polymer compound has excellent mechanical strength (flexural strength).
Abstract:
Disclosed herein are derivatives of phenolic and melamine compounds, methods of making these derivatives, and methods of using them. The compounds include phenolic and melamine compounds with multi-functional acrylate groups, polyethylene glycol and amino groups. The compounds may be cured to form resins that may be used in a variety of applications, such as paints, hydrogels, polyacrylate super absorbent polymers (SAPs), adhesives, composites, sealants, fillers, fire retardants, crosslinking agents, and the like.
Abstract:
There is provided a method of preparation for a biodegradable co-polyester, the method including: forming an oligomer through a primary esterification reaction between a hydroxy group of an aliphatic dihydroxy compound and a carboxylic group of an aliphatic dicarboxylic acid compound; performing a secondary esterification reaction between the formed oligomer and an aromatic dicarboxylic acid compound; and performing a polycondensation reaction in a vacuum, in which sequentially divided addition of the aromatic dicarboxylic acid compound is performed and the weight ratio of the aromatic dicarboxylic acid compound with respect to the oligomer for each time of the sequentially divided addition is from 2:8 to 5:5. The method efficiently increases a solubility of aromatic dicarboxylic acid, thereby increasing a reaction rate and reducing a side reaction.