公开(公告)号：US20190144627A1

公开(公告)日：2019-05-16

申请号：US16097379

申请日：2017-03-22

Applicant: IMERYS TALC AMERICA, INC.

Inventor： Neil TREAT

IPC: C08J9/00 ,  C08J3/20 ,  C08J9/12

Abstract: This disclosure describes processes for producing polymer foams, and compositions of matter relating to these processes. A process includes the steps of dispersing an organic nucleating agent in a dispersing medium to obtain an additive dispersion, contacting the additive dispersion with a mineral nucleating agent to obtain a hybrid nucleating agent containing the organic nucleating agent localized on at least a portion of a surface of the mineral nucleating agent, and contacting the hybrid nucleating agent with a polymer in the presence of a foaming agent to obtain a polymer foam. A foamed polymer of the present disclosure includes a cellular matrix containing a polymer material, and a mineral matrix of particles containing a hybrid nucleating agent dispersed in the cellular matrix, in which the hybrid nucleating agent contains an organic nucleating agent localized on at least a portion of a surface of an inorganic material.

公开(公告)号：US20160318249A1

公开(公告)日：2016-11-03

申请号：US15039592

申请日：2014-11-07

Applicant: IMERYS TALC AMERICA, INC.

Inventor： Saied KOCHESFAHANI

IPC: B29C67/00 ,  B33Y80/00 ,  B33Y70/00 ,  C08K3/34 ,  B33Y10/00

CPC classification number: B33Y80/00 ,  B29C64/106 ,  B29K2067/046 ,  B29K2105/0005 ,  B29K2105/16 ,  B29K2995/004 ,  B32B27/08 ,  B32B27/20 ,  B32B27/22 ,  B32B27/36 ,  B33Y10/00 ,  B33Y70/00 ,  C08K3/34 ,  C08K2201/002 ,  C08K2201/005 ,  C08K2201/006 ,  C08K2201/018 ,  C08L67/04

Abstract: A composition for fused filament fabrication may include polylactic acid resin and talc. The composition may range from 50% by weight to 99% by weight polylactic acid resin, and from 7% by weight to 40% by weight talc. The composition may be configured as filaments or pellets adapted to be used in a fused filament fabrication process. A method for generating a resin-based structure may include providing a resin source that may include polylactic acid resin and talc. The resin source may include from 50% by weight to 99% by weight polylactic acid resin, and from 7% by weight to 40% by weight talc. The method may also include heating the resin source to a temperature greater than the melting temperature for semi-crystalline resins or significantly greater than glass transition temperature for amorphous resins, and depositing the heated resin source in a layered manner to form the resin-based structure.

Abstract translation: 用于熔融长丝制造的组合物可以包括聚乳酸树脂和滑石。 该组合物可以为50重量％至99重量％的聚乳酸树脂，和7重量％至40重量％的滑石。 组合物可以被配置为适于在熔丝生产工艺中使用的长丝或小球。 用于产生树脂基结构的方法可以包括提供可以包括聚乳酸树脂和滑石的树脂源。 树脂源可以包含50重量％至99重量％的聚乳酸树脂，和7重量％至40重量％的滑石。 该方法还可以包括将树脂源加热至对于半结晶树脂的熔融温度大于或高于非晶态树脂的玻璃化转变温度的温度，并且分层沉积加热的树脂源以形成树脂基结构 。