Abstract:
This invention discloses a bioplastic composition comprising biomass as a component comprising a plastic compound resin comprising polybutylene succinate (PBS), polylactic acid (PLA), and additives selected from biomass from the coffee roasting processes, i.e. silver skin of coffee (SSC); and/or at least one fluoropolymer or fluoropolymer derivative as a friction reducing agent. This invention also relates to a process of pretreating the silver skin coffee for using as an additive for bioplastic resin to produce various products or using as a natural color masterbatch together with other plastics via extrusion, injection molding, compression and thermoforming processes in the industrial level.
Abstract:
The present invention provides recyclable copper clad laminates (CCLs) each including copper coil and a recyclable/degradable fiber composition, and printed circuit boards that are made of or include the CCLs of this invention. Also provided are method for recyclying these CCLs and printed circuit boards.
Abstract:
La présente invention concerne l'utilisation d'une composition comprenant au moins un acide gras libre saturé et au moins un acide gras libre insaturé en tant qu'additif, pour modifier les propriétés mécaniques d'un matériau polymère thermoplastique. La présente invention se rapporte également à un matériau polymère thermoplastique additivé et à son procédé de fabrication.
Abstract:
The invention provides novel compositions of hydroxyapatite and block copolymers, methods of their preparation, and uses thereof, wherein the co-polymers have degradable hydrophobic blocks and hydrophilic blocks for stable interfacing with hydroxyapatite, resulting in stable polymer-hydroxyapatite suspensions. The super- hydrophilicity, strengthened mechanical integrity, and retained structural integrity of the HA- PELA composite in aqueous environment represent major advantages over the HA-PLA composites for skeletal tissue engineering applications.
Abstract:
Disclosed is a biodegradable sheet prepared from biodegradable material comprising a gas barrier material, wherein the gas barrier material may be a nanoclay and/or polyvinyl alcohol.
Abstract:
The polymer composition is used for packing products of the chemical, food and other industries. The packing material obtained from the polymer composition has a wide range of application and controllable decomposition of the packages in water medium, ensuring environmental cleanness and recycling of the material.The polymer composition for packing materials contains polyvinylalcohol and water, and, according to the invention, it also contains polyvinylacetate dispersion, methylcellulose, carboxymethylcellulose and glucose in the following proportions of the components in % by weight: polyvinylalcohol 32 - 84, polyvinylacetate dispersion 10- 57, methylcellulose 3.0 - 5.8, carboxymethylcellulose 2.0 - 4.2, glucose 0.5 - 2.3, and water 0.5 - 6.0. The method for producing packing materials from the polymer composition includes the preparation of a dry mixture or viscous mass and moulding. According to the invention, before or after the moulding the material is treated successively with aqueous sodium tetraborate solution and aqueous formaldehyde solution.
Abstract:
The present invention relates to a masterbatch composition comprising high concentration of biological entities having a polymer-degrading activity and uses thereof for manufacturing biodegradable plastic articles.
Abstract:
본 발명은 수지의 생분해성을 유지하면서도 신율, 인장강도, 내충격성 등의 기계적 물성을 향상시키면서도 수지와의 상용성을 높일 수 있으며, 열안정성, 유연성, 투명성, 점착성, 내한성이 좋고, 특히, 가공 온도 범위가 넓어 다양한 분야의 생분해성 수지에 적용이 가능하고, 블리드 아웃(bleed out)현상이 발생하지 않고 내구성이 뛰어난 생분해성 수지 조성물용 가소제를 제공한다.