JPS5723637A - Preparation of heat insulating material with waste material of rigid polyurethane foam - Google Patents

Preparation of heat insulating material with waste material of rigid polyurethane foam

Info

Publication number
JPS5723637A
JPS5723637A JP8712180A JP8712180A JPS5723637A JP S5723637 A JPS5723637 A JP S5723637A JP 8712180 A JP8712180 A JP 8712180A JP 8712180 A JP8712180 A JP 8712180A JP S5723637 A JPS5723637 A JP S5723637A
Authority
JP
Japan
Prior art keywords
waste material
heat insulating
polyurethane foam
rigid polyurethane
catalyst
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.)
Granted
Application number
JP8712180A
Other languages
Japanese (ja)
Other versions
JPH0144497B2 (en
Inventor
Kazuhiko Osaki
Masanobu Higuchi
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.)
Inoac Corp
Original Assignee
Inoue MTP KK
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 Inoue MTP KK filed Critical Inoue MTP KK
Priority to JP8712180A priority Critical patent/JPS5723637A/en
Publication of JPS5723637A publication Critical patent/JPS5723637A/en
Publication of JPH0144497B2 publication Critical patent/JPH0144497B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To obtain the titled heat insulating material having heat insulating properties, strength, etc., and usable for building, etc., by mixing a prepolymer containing free isocyanate with a pulverized waste material of rigid polyurethane foam, and reacting and curing the mixture in the presence of a catalyst by the compression under heating. CONSTITUTION:A waste material of rigid polyurethane foam is pulverized or cut to give a chip-like waste material having a diameter of about 20mm.phi or less. 100pts.wt. resultant waste material is then mixed with 7 pts.wt. or more solution prepared by adding a solvent, e.g. an aromatic hydrocarbon, to a prepolymer, containing 5-35% free isocyanate, and obtained by reacting 100pts.wt. polyol, e.g. polypropylene glycol, with an excess amount, e.g. 50-300pts.wt., of an isocyanate to reduce the viscosity of the prepolymer as a binder and an aqueous solution of a water-soluble tertiary amine as a catalyst at a weight ratio between the catalyst and the water of 1/10-1/50 by the spray coating for 30sec-5min. The mixture is then introduced into a mold, heated preferably at 100 deg.C or above for 2min or longer, compressed to a volume of 1/2-1/10, reacted and cured.
JP8712180A 1980-06-26 1980-06-26 Preparation of heat insulating material with waste material of rigid polyurethane foam Granted JPS5723637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8712180A JPS5723637A (en) 1980-06-26 1980-06-26 Preparation of heat insulating material with waste material of rigid polyurethane foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8712180A JPS5723637A (en) 1980-06-26 1980-06-26 Preparation of heat insulating material with waste material of rigid polyurethane foam

Publications (2)

Publication Number Publication Date
JPS5723637A true JPS5723637A (en) 1982-02-06
JPH0144497B2 JPH0144497B2 (en) 1989-09-28

Family

ID=13906116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8712180A Granted JPS5723637A (en) 1980-06-26 1980-06-26 Preparation of heat insulating material with waste material of rigid polyurethane foam

Country Status (1)

Country Link
JP (1) JPS5723637A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684125A3 (en) * 1994-05-27 1996-03-20 Bayer Ag Method of manufacturing moulded parts through two-components reactive-systems with high filler content.
KR20030055420A (en) * 2001-12-26 2003-07-04 석귀호 Urethane Board for Sandwich Pannel using Waste Polyurethane
JP2008075041A (en) * 2006-09-25 2008-04-03 Inoac Corp Chip foam and manufacturing method thereof
JP2008106187A (en) * 2006-10-27 2008-05-08 Inoac Corp Sealing material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944085A (en) * 1972-09-02 1974-04-25
JPS4969783A (en) * 1972-10-26 1974-07-05
JPS5142751A (en) * 1974-10-02 1976-04-12 Ici Ltd
JPS5228576A (en) * 1975-08-29 1977-03-03 Toyo Rubber Chemical Ind Co Process for regenerating disposed hard foamed urethane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944085A (en) * 1972-09-02 1974-04-25
JPS4969783A (en) * 1972-10-26 1974-07-05
JPS5142751A (en) * 1974-10-02 1976-04-12 Ici Ltd
JPS5228576A (en) * 1975-08-29 1977-03-03 Toyo Rubber Chemical Ind Co Process for regenerating disposed hard foamed urethane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684125A3 (en) * 1994-05-27 1996-03-20 Bayer Ag Method of manufacturing moulded parts through two-components reactive-systems with high filler content.
US5611976A (en) * 1994-05-27 1997-03-18 Bayer Aktiengesellschaft Process for the production of moldings from two-component reactive systems having a high filler content
KR20030055420A (en) * 2001-12-26 2003-07-04 석귀호 Urethane Board for Sandwich Pannel using Waste Polyurethane
JP2008075041A (en) * 2006-09-25 2008-04-03 Inoac Corp Chip foam and manufacturing method thereof
JP2008106187A (en) * 2006-10-27 2008-05-08 Inoac Corp Sealing material

Also Published As

Publication number Publication date
JPH0144497B2 (en) 1989-09-28

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