公开(公告)号：US5618065A

公开(公告)日：1997-04-08

申请号：US504866

申请日：1995-07-20

申请人： Saburo Akiyama

发明人： Saburo Akiyama

IPC分类号： B29C45/16 ,  B29D23/00 ,  F16L47/03 ,  F16L47/02

CPC分类号： B29D23/005 ,  B29C45/1671 ,  B29C65/342 ,  B29C65/3468 ,  B29C65/3476 ,  B29C66/5221 ,  B29C66/5229 ,  B29C66/723 ,  F16L47/03 ,  B29C65/348 ,  B29C66/72341

摘要： An electric welding pipe joint made of a thermoplastic resin and containing a heating resistance wire therein may be produced by forming an inner cylindrical thermoplastic resin member by injection molding, winding a heating resistance wire around the inner cylindrical thermoplastic resin member, and forming two or more layers of an outer cylindrical thermoplastic resin member around the resistance wire-wound inner cylindrical member by injection molding successively.

摘要翻译： 由热塑性树脂制成的含有耐热电线的电焊管接头可以通过注射成型形成内圆筒形热塑性树脂构件，将内部圆筒形热塑性树脂构件周围的加热电阻丝卷绕并形成两个或多个 通过注射成型连续地在电阻绕线的内圆柱形构件周围的外圆柱形热塑性树脂构件的层。

公开(公告)号：US5916468A

公开(公告)日：1999-06-29

申请号：US887942

申请日：1997-07-03

申请人： Saburo Akiyama ,  Yoshio Katayama ,  Nobuhiro Nishikata

发明人： Saburo Akiyama ,  Yoshio Katayama ,  Nobuhiro Nishikata

IPC分类号： B29C45/14 ,  B29D23/00 ,  F16L47/03 ,  H05B3/58 ,  H05B3/44

CPC分类号： B29D23/005 ,  B29C45/14549 ,  F16L47/03 ,  H05B3/58 ,  B29C65/342 ,  B29C65/3476 ,  B29C65/8215 ,  B29C66/3472 ,  B29C66/5221 ,  B29C66/5229 ,  B29C66/52292 ,  B29C66/52298 ,  B29C66/71 ,  B29C66/7392 ,  B29C66/949

摘要： An inner-less electrically weldable pipe joint has a hollow cylindrical pipe joint body of a thermoplastic material and a resistance heating wire coil surrounded by the pipe joint body. The wire is partly exposed to an hollow interior of the pipe joint body and partly embedded in an inner surface of the pipe joint body. During the welding operation, the material of the welding zone of the pipe joint and the pipes being connected is readily and selectively heated by the heat from the exposed wire, there by enhancing the welding strength and shortening the welding time. Also, described are methods of producing such an inner-less electrically weldable pipe joint.

摘要翻译： 内部可焊接的管接头具有热塑性材料的中空圆柱形管接头体和由管接头体包围的电阻加热丝线圈。 线部分地暴露于管接头本体的中空内部，并且部分地嵌入在管接头本体的内表面中。 在焊接操作期间，通过提高焊接强度和缩短焊接时间，管接头焊接区域和被连接的管道的材料通过暴露的焊丝的热量容易且选择性地加热。 此外，还描述了制造这种无内部电焊接管接头的方法。

公开(公告)号：US5026792A

公开(公告)日：1991-06-25

申请号：US460055

申请日：1990-03-07

申请人： Saburo Akiyama ,  Naoyuki Murakami ,  Kazuo Kitamura

发明人： Saburo Akiyama ,  Naoyuki Murakami ,  Kazuo Kitamura

IPC分类号： C08L59/00 ,  C08L65/00 ,  C08L69/00

CPC分类号： C08L69/00

摘要： The present invention provides a resin composition which is a composition of 30 to 99.5 wt. % of an aromatic polycarbonate and 70 to 0.5 wt. % of a vinylidene fluoride-hexafluoroacetone copolymeric elastomer.This resin composition is excellent in moldability and processability, heat resistance and impact resistance, and useful as an engineering plastic.

公开(公告)号：US4946918A

公开(公告)日：1990-08-07

申请号：US266764

申请日：1988-11-03

申请人： Saburo Akiyama ,  Susumu Honda ,  Shin-ichi Akimoto ,  Tohru Yasukohchi

发明人： Saburo Akiyama ,  Susumu Honda ,  Shin-ichi Akimoto ,  Tohru Yasukohchi

IPC分类号： C08F222/00

CPC分类号： C08F222/00

摘要： A synthetic resin compatibilizer comprising a copolymer of a polyoxyalkylene derivative represented by general formula(I) with maleic anhydride, maleic acid, or a salt or an ester thereof ##STR1## where B represents a residue of a compound having from 2 to 8 hydroxyl groups; AO represents an oxyalkylene group having from 2 to 18 carbon atoms; R.sup.1 represents an unsaturated hydrocarbon group having from 2 to 5 carbon atoms; R.sup.2 represents a hydrocarbon or acyl group having from 1 to 40 carbon atoms; a is from 0 to 1,000; b is from 0 to 1,000; c is from 0 to 1,000; l is from 1 to 8; m is from 0 to 2; and n is from 0 to 7; l+m+n=2 to 8; al+bm+cn=1 to 1,000, and m/(l+n).ltoreq.1/3.The synthetic resin compatibilizer provides a polymer alloy having excellent tensile and flexural strengths.

公开(公告)号：US4804713A

公开(公告)日：1989-02-14

申请号：US114042

申请日：1987-10-29

申请人： Saburo Akiyama

发明人： Saburo Akiyama

IPC分类号： C08L27/16 ,  C08L27/14 ,  C09J7/02 ,  C09J127/12 ,  C09J127/16 ,  C09J133/04 ,  C09J133/08

CPC分类号： C09J127/16 ,  C09J133/08 ,  C09J7/021 ,  C08L27/16 ,  C09J2201/606

摘要： A fluororesin composition useful as a pressure sensitive adhesive is obtained by blending 2-50 wt % of a copolymer of vinylidene fluoride and hexafluoroacetone with a copolymer of 2-ethylhexyl acrylate and at least one other vinylic monomer. As the latter copolymer, either a copolymer made up of at least 60 mol % of 2-ethylhexyl acrylate and the balance of methacrylic ester(s) or a copolymer of 50-95 mol % of 2-ethylhexyl acrylate, 5-40 mol % of vinyl acetate and 0-40 mol % of additional vinylic comonomer(s) selected from acrylic acid and its esters and methacrylic acid and its esters is suitable. This resin composition is sufficiently strong in both tack adhesion power and cohesive force and has excellent weatherability, water resistance and oil resistance.

摘要翻译： 通过将2-50重量％的偏二氟乙烯与六氟丙酮的共聚物与丙烯酸2-乙基己酯和至少一种其它乙烯基单体的共聚物共混，得到用作压敏粘合剂的氟树脂组合物。 作为后一种共聚物，由至少60mol％的丙烯酸2-乙基己酯和其余的甲基丙烯酸酯组成的共聚物或50-95mol％的丙烯酸2-乙基己酯的共聚物，5-40mol％ 的乙酸乙烯酯和0-40mol％的另外的选自丙烯酸及其酯和甲基丙烯酸及其酯的乙烯基共聚单体是合适的。 这种树脂组合物在粘着力和内聚力方面都足够坚固，具有优异的耐候性，耐水性和耐油性。