The subject of the present invention is to provide a resin material in which pulp and a thermoplastic resin are uniformly mixed, and which is easy to mold. Provided is a molding resin material comprising pulp having a 50% average particle size (D50) on a volume basis measured by a laser diffraction/scattering method of 100 μm or less, preferably 10 to 90% by mass of a pulverized product of hardwood chemical pulp, and further comprising a thermoplastic resin such as a polyolefin-based resin and a polylactic acid-based resin.

A material includes a water hyacinth fiber and a substance mixed with the water hyacinth fiber. The substance is not polyurethane. A concentration of the substance in the material is in a range of 0 to 20%.

This invention relates to a polymer composition that is particularly suitable for use in the manufacture of thermoformed articles, which can be biodegraded in industrial composting. This invention also relates to a process for the production of the said composition and articles obtained thereby.

The invention relates to a method to manufacture an elastomeric article includes preparing a former for shaping the elastomeric article; dipping the former into a coagulant solution which including one or more one or more polyvalent metal salt, surfactant, wetting agents, anti-tack materials, non-settling agents, and biocide; dipping the coagulant-coated former into a synthetic latex composition from 20° C. to 40° C. at least once to create the elastomeric article; pre-leaching the elastomeric article for not more than 10 times; vulcanizing the elastomeric article to enable effective crosslinking; surface treating the vulcanized elastomeric article form 60° C. to 140° C.; post-leaching the elastomeric article at temperature of 30° C. to 95° C.; applying donning aid to the elastomeric article; drying the elastomeric article; and stripping the elastomeric article from the former. The elastomeric article has a thickness of 0.001 to 5 mm, a minimum tensile strength of 7 MPa, and an elongation above 300%.

The inventors of the technology disclosed herein have developed triblock copolymers of lactide-containing polyesters and poly(ethylene glycol), PEG, having thermoresponsive properties.

The present invention relates to a biodegradable and/or compostable thermoplastic composition comprising lignin, rigid polymers, and flexible polymers for producing rigid parts, as well as the use of said composition. A product comprising the biodegradable and/or compostable thermoplastic composition is also disclosed.

Disclosed are polymeric compositions comprising polyhydroxyalkanoates. These compositions can comprise a blend comprising a polyhydroxyalkanoate (PHA) polymer, and a rubber polymer. The blend can comprise a biphasic mixture comprising a first phase comprising the PHA polymer, and a second phase comprising the rubber polymer dispersed with the first phase. The rubber polymer can be crosslinked, for example, through reaction with a free radical initiator. By incorporating the dynamically crosslinked rubber polymer, the polymer composition can exhibit one or more improved characteristics relative to PHA alone, including improved thermal stability, improved melt strength, improved flexibility, improved toughness, or a combination thereof. Also provided are articles formed at least in part from these polymeric compositions, as well as methods of making these polymeric compositions.

The invention relates to biocompatible, bioabsorbable derivatized non-crosslinked chitosan compositions optionally crosslinked to gelatin/collagen by 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride (EDC) for biomedical use and methods of making and testing such compositions, including a modified acute systemic toxicity test. The compositions comprise derivatized chitosan reacetylated to a degree of N-deacetylation (DDA) of between about 15% and 40%. The compositions are typically bioabsorbed in about 90 days or less and can be made to bioabsorb at differing rates of speed. The compositions are initially soluble in aqueous solution below pH 6.5. The compositions have an acid content that can be adjusted between about 0% (w/w) and about 8% (w/w) to customize the composition for uses that require and/or tolerate differing levels of cytotoxicity, adhesion, composition cohesion, and cell infiltration into the composition.

The present invention discloses a polylactic acid composite and use thereof. The polylactic acid composite includes the following components: i) 50-85 parts by weight of polylactic acid; ii) 8 to 35 parts by weight of an inorganic filler; and iii) 0 to 8 parts by weight of a plasticizer; wherein the polylactic acid composite has an end carboxyl content of 12 to 51 molKOH/t. The present invention unexpectedly discovered through research that, by controlling an end carboxyl content of the polylactic acid composite within a range of 12 to 51 molKOH/t, the polylactic acid composite, under a condition of 60° C. and 60% humidity, with a test time of 30 days, has a ratio of a mass melt index MFI.sub.t=30 to an initial mass melt index MFI.sub.t=0 satisfying 3.5<η=MFI.sub.t=30/MFI.sub.t=0<5.1, which indicates that under the test conditions, the product has slow aging degradation, and the polylactic acid composite has a biodegradation rate greater than 90% after 12 weeks in the case where a thickness is 2.5 mm or less, and has suitable aging properties and excellent biodegradability.

Disclosed herein are elastic, bioresorbable encasements for medical implants, methods for making the same and uses thereof.