JPS624062B2 - - Google Patents

Info

Publication number
JPS624062B2
JPS624062B2 JP55065679A JP6567980A JPS624062B2 JP S624062 B2 JPS624062 B2 JP S624062B2 JP 55065679 A JP55065679 A JP 55065679A JP 6567980 A JP6567980 A JP 6567980A JP S624062 B2 JPS624062 B2 JP S624062B2
Authority
JP
Japan
Prior art keywords
hardball
low
hydroxyl value
baseball
ball
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP55065679A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56161066A (en
Inventor
Osamu Sugimoto
Tsuyoshi Fujiwara
Chuzo Isoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DKS Co Ltd
Original Assignee
Dai Ichi Kogyo Seiyaku Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Ichi Kogyo Seiyaku Co Ltd filed Critical Dai Ichi Kogyo Seiyaku Co Ltd
Priority to JP6567980A priority Critical patent/JPS56161066A/ja
Publication of JPS56161066A publication Critical patent/JPS56161066A/ja
Publication of JPS624062B2 publication Critical patent/JPS624062B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyurethanes Or Polyureas (AREA)
JP6567980A 1980-05-16 1980-05-16 Manufacture of polyurethane resin group training ball for hard-ball baseball Granted JPS56161066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6567980A JPS56161066A (en) 1980-05-16 1980-05-16 Manufacture of polyurethane resin group training ball for hard-ball baseball

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6567980A JPS56161066A (en) 1980-05-16 1980-05-16 Manufacture of polyurethane resin group training ball for hard-ball baseball

Publications (2)

Publication Number Publication Date
JPS56161066A JPS56161066A (en) 1981-12-11
JPS624062B2 true JPS624062B2 (en:Method) 1987-01-28

Family

ID=13293922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6567980A Granted JPS56161066A (en) 1980-05-16 1980-05-16 Manufacture of polyurethane resin group training ball for hard-ball baseball

Country Status (1)

Country Link
JP (1) JPS56161066A (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384050A (en) * 1981-10-26 1983-05-17 W. R. Grace & Co. Flexible polyurethane foam based on MDI
GB8627658D0 (en) * 1986-11-19 1986-12-17 Bp Chem Int Ltd Polyurethane froth foams
JPH05202164A (ja) * 1991-07-22 1993-08-10 Tokyo Seat Kk 高密度表層付ウレタンフォーム成形品の製造方法
WO2008000590A1 (en) * 2006-06-30 2008-01-03 Huntsman International Llc Novel tennis ball
ATE547156T1 (de) * 2007-07-20 2012-03-15 Invista Tech Sarl Herstellung einer polyurethanschaumstoffkugel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54118268U (en:Method) * 1978-02-03 1979-08-18

Also Published As

Publication number Publication date
JPS56161066A (en) 1981-12-11

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