公开(公告)号：GB2124221B

公开(公告)日：1985-11-13

申请号：GB8318294

申请日：1983-07-06

Applicant: SUMITOMO RUBBER IND

Inventor： TOMINAGA ICHIRO ,  NAKAHARA AKIHIRO

IPC: C07C53/126 ,  C07C57/04 ,  C08K5/098

公开(公告)号：GB2142640A

公开(公告)日：1985-01-23

申请号：GB8414497

申请日：1984-06-07

Applicant: SUMITOMO RUBBER IND

Inventor： TOMINAGA ICHIRO ,  NAKAHARA AKIHIRO

IPC: A63B37/00 ,  C08F2/38 ,  C08K5/378 ,  C08K5/40 ,  C08K5/47 ,  C08J5/00

Abstract: The present invention provides solid golf balls having excellent rebound performance, durability and flight carry characteristics produced from a rubber composition containing one or more agents for regulating the molecular weight of grafted chain selected from the group consisting of 2-(4-morpholinyldithio) benzothiazole, 4,4'-dithio-bis-dimorpholine, dipentamethylenethiuram tetrasulfide and derivatives thereof.

公开(公告)号：DE3884683T2

公开(公告)日：1994-03-24

申请号：DE3884683

申请日：1988-01-16

Applicant: SUMITOMO RUBBER IND

Inventor： NAKASHITA TAKEFUMI ,  MITSUBA ATSUKO ,  TOUJI DAIJIRO ,  TOMINAGA ICHIRO ,  SASAKI TERUO ,  NAKASHIO YUKIYASU ,  NAGASE TSUNEYUKI

IPC: C08L27/06 ,  C09K5/08 ,  C09K5/00

公开(公告)号：DE3688883T2

公开(公告)日：1993-12-23

申请号：DE3688883

申请日：1986-05-30

Applicant: SUMITOMO RUBBER IND

Inventor： TOMINAGA ICHIRO ,  MATUKI TAKETO ,  YAMAGUCHI TETUO ,  MATUSHITA HIROOMI ,  NIWA KUNIO

IPC: A63B49/10 ,  B29C39/10 ,  C08J5/04

Abstract: This structural material is composed of a polyamide resin reinforced by a reinforcing material composed of continuous filaments and/or long fibres. The reinforcing material is surface-treated with a surface-treatment agent for nylon, soluble in alcohol and/or water. The specific viscosity (eta) of the polyamide resin is more than 1.8 poise. The amount of reinforcing material used is 10-80 wt.% of the polyamide resin. The structural material is shaped as a stick or a tennis racket. The structural material is produced by means of a polymer casting method composed of the following processes: (1) The surface treated fibrous reinforcing material is arranged in a specific shape. (2) The arranged material is placed in a mould. (3) A molten omega-lactam containing a polymerisation catalyst and an initiator is introduced into the mould. (4) The reinforced polyamide resin is obtained by heating the mould.

公开(公告)号：GB2208364A

公开(公告)日：1989-03-30

申请号：GB8818042

申请日：1988-07-28

Applicant: SUMITOMO RUBBER IND

Inventor： TOMINAGA ICHIRO ,  MATSUKI TAKETO ,  YAMAGUCHI TETSUO ,  MATSUSHITA HIROOMI ,  NIWA KUNIO

IPC: A63B49/10 ,  B29C70/34 ,  B29C70/48

Abstract: A process for preparing a fiber reinforced plastic article by a reaction injection molding method, comprising the following steps; (a) winding reinforcing fiber around a flexible tube, (b) placing it in a mold, (c) either pouring a foaming agent in said flexible tube followed by foaming and curing it, or pouring an uncured foam followed by curing it, and (d) injecting a reaction-injection-molding composition between said mold and said flexible tube to cure. The article may be a shaft of a golf club or a frame of a tennis raquet.

公开(公告)号：GB2144130B

公开(公告)日：1986-08-06

申请号：GB8417138

申请日：1984-07-05

Applicant: SUMITOMO RUBBER IND

Inventor： TOMINAGA ICHIRO ,  MATSUKI TAKETO

IPC: A63B37/00 ,  A63B37/12 ,  C08L23/00 ,  C08L23/08 ,  C08L23/26 ,  C08L101/00 ,  C08L23/04

Abstract: A cover composition for golf balls having an improved impact resistance which comprises an ionomer resin and 1 to 15 parts by weight of a linear low density polyethylene per 100 parts by weight of the ionomer resin.

公开(公告)号：GB2134800B

公开(公告)日：1986-07-02

申请号：GB8402788

申请日：1984-02-02

Applicant: SUMITOMO RUBBER IND

Inventor： TOMINAGA ICHIRO ,  NAKAHARA AKIHIRO

IPC: C08F291/00 ,  A63B37/00 ,  A63B37/04 ,  C08F279/00 ,  C08F279/02

Abstract: A zinc acrylate powder coated with a higher fatty acid has a good dispersibility into a rubber, and is used as a co-crosslinking agent in rubber compositions for one piece solid golf balls or for cores of covered solid golf balls. The compositions containing the coated zinc acrylate have a good roll workability and provide solid golf balls having an improved impact resilience, a proper hardness and good sound and feeling of striking.

公开(公告)号：GB2104529A

公开(公告)日：1983-03-09

申请号：GB8220546

申请日：1982-07-15

Applicant: SUMITOMO RUBBER IND

Inventor： TOMINAGA ICHIRO ,  NAKAHARA AKIHIRO

IPC: C08K5/098 ,  C08C4/00 ,  C08J3/24

Abstract: A process for preparing a rubber composition containing a zinc salt of an alpha , beta -ethylenically unsaturated carboxylic acid, which comprises reacting an alpha , beta -ethylenically unsaturated carboxylic acid with a zinc compound in a rubber composition in the presence of from 1 to 25 parts by weight of calcium hydroxide or a calcium salt of the carboxylic acid to 100 parts by weight of the carboxylic acid. Solid moulded golf balls having a high coefficient of restitution are produced by using the rubber composition prepared by the process.

公开(公告)号：DE69208943T2

公开(公告)日：1996-07-25

申请号：DE69208943

申请日：1992-06-03

Applicant: SUMITOMO RUBBER IND

Inventor： NAKAMURA MASAO ,  TOMINAGA ICHIRO

IPC: A63B39/06

Abstract: A tennis ball having a felt covering which is superior is abrasion resistance, felt appearance and resistance to fuzzing which may occur during the use of ball, the felt covering comprising a polyethylene terephthalate fiber which satisfies the following parameters: (a) a value of hot air shrinkability/intrinsic viscosity of polymer falling within the range of 5.0 to 7.5 %, (b) birefringence of 170 x 10 to 185 x 10 , (c) Orientation factor for crystallites fc = 0.935 to 0.950, and (d) amorphous molecular orientation parameter of 0.75 to 0.90. i

公开(公告)号：DE3688883D1

公开(公告)日：1993-09-16

申请号：DE3688883

申请日：1986-05-30

Applicant: SUMITOMO RUBBER IND

Inventor： TOMINAGA ICHIRO ,  MATUKI TAKETO ,  YAMAGUCHI TETUO ,  MATUSHITA HIROOMI ,  NIWA KUNIO

IPC: A63B49/10 ,  B29C39/10 ,  C08J5/04

Abstract: This structural material is composed of a polyamide resin reinforced by a reinforcing material composed of continuous filaments and/or long fibres. The reinforcing material is surface-treated with a surface-treatment agent for nylon, soluble in alcohol and/or water. The specific viscosity (eta) of the polyamide resin is more than 1.8 poise. The amount of reinforcing material used is 10-80 wt.% of the polyamide resin. The structural material is shaped as a stick or a tennis racket. The structural material is produced by means of a polymer casting method composed of the following processes: (1) The surface treated fibrous reinforcing material is arranged in a specific shape. (2) The arranged material is placed in a mould. (3) A molten omega-lactam containing a polymerisation catalyst and an initiator is introduced into the mould. (4) The reinforced polyamide resin is obtained by heating the mould.