摘要:
PROBLEM TO BE SOLVED: To provide polyester compositions that are thermally stable and cause no color formation without causing foaming, when producing a film, a sheet material, and a molded product.SOLUTION: Polyester compositions contains: (I) at least one polyester which comprises (a) a dicarboxylic acid component comprising (i) 70 to 100 mol% of terephthalic acid residues, (ii) 0 to 30 mol% of aromatic dicarboxylic acid residues having up to 20 carbon atoms, and (iii) 0 to 10 mol% of aliphatic dicarboxylic acid residues having up to 16 carbon atoms, and (b) a glycol component comprising (i) 1 to 99 mol% of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and (ii) 1 to 99 mol% of cyclohexanedimethanol residues; and (II) at least one thermal stabilizer chosen from at least one of alkyl phosphate esters, aryl phosphate esters, mixed alkyl aryl phosphate esters, reaction products thereof, and mixtures thereof, wherein the total mol% of the dicarboxylic acid component is 100 mol%, and wherein the total mol% of the glycol component is 100 mol%.
摘要:
PROBLEM TO BE SOLVED: To provide extrusion blow molded articles of a polyester, which are useful in extrusion blow molding, profile extrusion molding and the like, have a low haze value, and cause no adhesion to an apparatus during drying and processing.SOLUTION: Described are extrusion blow molded articles comprising a polyester which comprises: (a) a dicarboxylic acid component comprising (i) about 90 to about 100 mol% of terephthalic acid residues, and (ii) about 0 to about 10 mol% of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; and (b) a glycol component comprising (i) about 42 to about 60 mol% ethylene glycol residues, and (ii) about 40 to about 58 mol% residues of 1,4-cyclohexanedimethanol. The inherent viscosity of the polyester is from 0.50 to 1.0 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25°C.
摘要:
PROBLEM TO BE SOLVED: To provide a method of forming an adhesive bond between two or more articles or two or more parts of the same article with an adhesive including a vinyl acetate polymer and a plasticizer.SOLUTION: The method includes forming an adhesive bond between two articles or two or more parts of the same articles. The method includes applying a composition to at least one article, an opening of at least an article, joints, bonding parts or connecting parts between two or more articles, a joint, bonding parts or connecting parts between two or more parts of one or more articles, or two or more combinations thereof. The composition is aqueous, and includes (a) at least one kind of vinyl acetate polymer, and (b) at least one kind of plasticizer including at least one kind of 4 to 8 C alkyl terephthalate, wherein the 4 to 8 C alkyl terephthalate is present at least an amount of 6% as a dry mass base therein.
摘要:
PROBLEM TO BE SOLVED: To relate to vacuum packaging and a vacuum packaging technology.SOLUTION: This embodiment includes a bale and a package comprising a sealed chamber having an internal volume at pressure lower than ambient atmospheric pressure. In various embodiments, the internal volume of the package comprises a bulk material, a bulk fiber material, fibers or fibrous materials. Moreover, packaging methods, packaging systems and apparatus are disclosed.
摘要:
PROBLEM TO BE SOLVED: To provide a process for the preparation of shaped articles that has high transparency and low haze, and comprises immiscible blends of thermoplastic polymers and a copolyamide, or a transamidized homogeneous blend.SOLUTION: The method includes: a step (A) of melt-blending a first component comprising a thermoplastic polymer of polyesters, polycarbonates and/or polyarylates with a second component comprising a copolyamide or a homogeneous, transamidized blend of polyamides, wherein the first component and second component form an immiscible blend, the second component and the first component have a difference in refractive index of 0.006 to -0.0006, and the immiscible blend has a percent transmittance of at least 75%, and a haze of 10% or less; a step (B) of forming a shaped article; a step (C) of recovering a scrap polymer composition comprising the blended first and second components; a step (D) of grinding the scrap polymer composition to produce a polymer regrind; a step (E) of optionally drying the scrap polymer composition; and a step (F) of combining the polymer regrind with the first and second components of the step (A).
摘要:
PROBLEM TO BE SOLVED: To provide injection-molded polymer blends with improved notched Izod impact strength and temperature stability.SOLUTION: The polymer blends contains: (A) 70 to 75 wt.% of at least one flexible biodegradable polymer (A) having a glass transition temperature of less than about 0°C, selected from aliphatic-aromatic polyesters; (B) 25 wt.% of at least one rigid biodegradable polymer (B) having a glass transition temperature of greater than about 10°C, selected from biopolymers based on polylactic acid; and (C) 0 to 5 wt.% of at least one biodegradable additive, wherein the polymer blend has a notched Izod impact strength according to ASTM D256 of at least 397.5 J/m (7.5 ft-lbs/in).
摘要:
PROBLEM TO BE SOLVED: To provide a water-dispersible fiber and fibrous articles prepared therefrom that exhibit adequate tensile strength, absorptivity, flexibility, and fabric integrity in the presence of moisture, especially upon exposure to human bodily fluids (a fibrous article is needed that does not require a binder and completely disperses or dissolves in residential or municipal sewerage systems). SOLUTION: There are disclosed water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25°C, or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also, there are disclosed multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57°C and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method of forming cellulose acetate tow fiber into a bale configured to include a sealed chamber with an internal volume in lower pressure relative to environmental atmospheric pressure. SOLUTION: In the method of packaging the elastic cellulose acetate tow fiber, the fiber is prepared, compressed and provided with an evacuator as a check valve thereon thereby forming a chamber which can be sealed, and the chamber is sealed and evacuated by way of the evacuator including release of compression with a density of 0.50-0.78 g/cm 3 and an internal pressure of ≥16,000 and COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译:要解决的问题:提供一种将乙酸纤维素丝束纤维形成为包括相对于环境大气压力的具有较低压力的内部体积的密封室的捆包的方法。 解决方案:在包装弹性纤维素醋酸纤维素纤维的方法中,纤维被制备,压缩并在其上设置有作为止回阀的排气器,从而形成可以被密封的室,并且将室密封并抽真空 排气装置的方式包括在所获得的捆包中释放密度为0.50-0.78g / cm 3 / SP的压缩和内部压力≥16,000和<101,325Pa。 版权所有(C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide polyester compositions that have excellent impact resistance while holding melt processability of a conventional polyester, and that provides transparent thermally molded articles excellent in color tone.SOLUTION: Described are polyester compositions comprising: at least one polyester which comprises terephthalic acid, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and 1,4-cyclohexanedimethanol; and residues of a branching agent, or a thermal stabilizer, wherein the polyester compositions have certain polyester properties.
摘要:
PROBLEM TO BE SOLVED: To provide bulk of spheroidal polyester particles in specific physical and geometrical configuration.SOLUTION: A bulk of spheroidal polyester particles has (a) an It.V. of at least 0.72 dL/g, (b) (i) at least two melting peaks having a low peak melting point having a peak temperature of 140-220°C and a melting endothermic area of the absolute value of at least 1 J/g, or (ii) at least one melting point having a heating curve which separates from the base line in the endothermic direction at a temperature of 200°C or less, and/or (c) a degree of crystallinity of 45% or less. The polyester includes 20 mol% or less of carboxylic acid residues other than terephthalic acid residues relative to 100 mol% of the carboxylic acid residues, and the polyester includes at least 4 mol% of 1,4-cyclohexane dimethanol residues and 20 mol% or less of a hydroxy functional compound residues other than ethylene glycol relative to 100 mol% of the hydroxyfunctional compound. The polyester particles are not subjected to solid-phase polymerization, and a repose angle is 34° or less.