利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

568 条记录 (耗时 0.013 秒)

    Sintered polymer moldings and composites having altered cross section(s): fluid compacting and sintering process and apparatus for making same
    82.
    发明授权
    Sintered polymer moldings and composites having altered cross section(s): fluid compacting and sintering process and apparatus for making same 失效

    公开(公告)号：US4351869A

    公开(公告)日：1982-09-28

    申请号：US160184

    申请日：1980-06-17

    申请人： Charles N. Cresap

    发明人： Charles N. Cresap

    IPC分类号： B29C37/00 ,  B29C43/00 ,  B29C43/12 ,  B29C43/14 ,  B29C43/18 ,  B29C70/70 ,  B32B3/04 ,  B29C17/06 ,  B29D9/04 ,  B32B27/00

    CPC分类号： B29C43/10 ,  B29C37/0085 ,  B29C43/006 ,  B29C43/12 ,  B29C43/14 ,  B29C43/18 ,  B29C70/70 ,  B29C2043/3647 ,  B29C2791/001 ,  B29C33/0088 ,  B29K2105/0094 ,  B29K2105/20 ,  B29K2105/251 ,  B29K2995/0022 ,  Y10T428/2419 ,  Y10T428/24479 ,  Y10T428/24545 ,  Y10T428/24595 ,  Y10T428/24992 ,  Y10T428/31544

    摘要： This invention is concerned with high density compacted and sintered polymer articles which previously could not be made entirely non-porous to liquid. It was inevitable, in an article with different parts, that frictional considerations in pressing one part would materially differ from those of another with the practical result that uniformity of density, throughout the article, could never be achieved. Fortuitously, for purposes of making various different parts of an article void free, the density values for each part need not be substantially all the same, but instead need only be raised above a predetermined threshold value.An object of this invention is the preparation of physically dense objects of sintered polymer with multiple parts, such as with abruptly varying cross section, which are uniformly void-free throughout, and of everywhere "theoretical" (reguline) density.Present application discloses simultaneous fluid pressing and sintering of sinterable polymer into high density shapes with multiple parts, recessed sections, and/or varied cross section(s), or attaching and/or adhering the polymer to various rigid materials and/or surfaces. By constraining heated fluid to deform thin sheet in contact with sintering polymer pieces, masses, or assembly, it has been found that the sintered polymer can be formed in multiple parts, of difficult and distributed shapes, recessed and varied cross section, etc., or adhered and/or interlocked to rigid material or surface(s) in faultless and void-free quality, everywhere of highest density.Composites with glossy and distributed surface, and undulating in polymer shape, are consolidated with rigid material the void-free combination benefitting from their respective and distinct individual properties and contours. Formed thin sheet or recessed section moldings per above may be combined integrally with the composites while still retaining void-free quality etc. throughout.Apparatus for producing the moldings and composites consists of one or several sheets of thin material sealed inside a split container composed of corresponding container sections and possible additional ones. Various combinations of single and multiple-diaphragm sets can be assembled for simultaneous fabrication of moldings or composites.

    Method of melamine glazing of polyester substrates
    84.
    发明授权
    Method of melamine glazing of polyester substrates 失效
    聚酯基材三聚氰胺玻璃的方法

    公开(公告)号：US3981954A

    公开(公告)日：1976-09-21

    申请号：US537498

    申请日：1974-12-30

    申请人： Salvatore Algieri ,  Jonas Weiss ,  Werner Theodor Raudenbusch

    发明人： Salvatore Algieri ,  Jonas Weiss ,  Werner Theodor Raudenbusch

    IPC分类号： B29C43/00 ,  B29C43/14 ,  C08F299/04 ,  C08J7/04 ,  B29D9/08 ,  B29G1/00

    CPC分类号： C08J7/047 ,  B29C43/003 ,  B29C43/146 ,  C08F299/0478 ,  C08J2367/06 ,  C08J2461/00

    摘要： A method of forming a polymer laminate which comprises mixing an unsaturated polyester resin with allyl melamine monomer; molding the mixture under heat and pressure to cause the allyl melamine to cross link the polyester chains and thereby produce a substrate; applying a melamine-formaldehyde glaze material to one face of the substrate; and heating the glazed substrate to effect polymerization and adherence of the glaze material on the substrate surface. The use of allyl melamine as the cross linking agent for the polyester prevents the glaze from cracking, blistering or peeling when subjected to heat, attack from household chemicals, or abrasion forces.

    摘要翻译： 一种形成聚合物层压体的方法，其包括将不饱和聚酯树脂与烯丙基三聚氰胺单体混合; 在热和压力下成型混合物以使烯丙基三聚氰胺与聚酯链交联并从而产生底物; 将三聚氰胺 - 甲醛釉料施用于基材的一面; 并且加热玻璃基板以使釉材料聚合和粘附在基材表面上。 使用烯丙基三聚氰胺作为聚酯的交联剂可防止釉料经受热，家用化学品侵蚀或磨损力时开裂，起泡或剥落。

    Plastic molding process
    85.
    发明授权
    Plastic molding process 失效
    塑料成型工艺

    公开(公告)号：US3597425A

    公开(公告)日：1971-08-03

    申请号：US3597425D

    申请日：1969-04-14

    申请人： AMERICAN STANDARD INC

    发明人： SHAINES ALFRED

    IPC分类号： B29C43/14 ,  B29C9/00 ,  B29D9/08 ,  B29G1/00

    CPC分类号： B29C43/146 ,  B29K2105/24 ,  B29K2105/243

    摘要： AN IMPROVED DUAL COMPRESSION MOLDING PROCESS WHICH INCLUDES THE STEP OF PLACING AT LEAST ONE HEATED PREFORM OF DISSIMILAR THERMO-SETTING RESIN ON A NEARLY VERTICAL SURFACE OF A PARTIALLY CURED BASE MOLDING. A FEATURE OF THE DESCRIBED PROCESS IS THAT ONE OR MORE PREFORMS OF RESIN CAN BE DISTRIBUTED ANYWHERE ON THE SURFACE OF THE PARTIALLY CURED BASE MOLDING WHICH IS TO BE COATED THEREWITH.