GB1164550A - Improved Polyurethane Elastomers and their use in Pipe Joint Seals - Google Patents

Improved Polyurethane Elastomers and their use in Pipe Joint Seals

Info

Publication number
GB1164550A
GB1164550A GB5736267A GB5736267A GB1164550A GB 1164550 A GB1164550 A GB 1164550A GB 5736267 A GB5736267 A GB 5736267A GB 5736267 A GB5736267 A GB 5736267A GB 1164550 A GB1164550 A GB 1164550A
Authority
GB
United Kingdom
Prior art keywords
pipe section
dec
mould
liquid composition
pipe joint
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
GB5736267A
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.)
Allied Corp
Original Assignee
Allied Chemical Corp
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 Allied Chemical Corp filed Critical Allied Chemical Corp
Publication of GB1164550A publication Critical patent/GB1164550A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Abstract

1,164,550. Pipe joints. ALLIED CHEMICAL CORP. 18 Dec., 1967 [20 Dec., 1966], No. 57362/67. Heading F2G. [Also in Division C3] A polyurethane sealing gasket may be cast on the end of a pipe section by (a) coating the end of the pipe section with a primer to permit adhesion of the gasket material to the pipe section; (b) providing a mould from around the end of the pipe section; (c) pouring into the mould form a liquid composition obtained as described below; (d) allowing the liquid composition to cure; and (e) removing the mould form. The polyurethane composition is prepared by reacting an isocyanate-terminated prepolymer which is the reaction product of a polyether glycol of M.W. 150 to 560 and a stoichiometric excess of an organic polyisocyanate with a polyether glycol of M.W. 560 to 5600 and a polyether tetrol of M.W. 560 to 4000, in the presence of an inert filler and a catalyst for the NCO-OH group reaction at ambient temperatures (see Division C3). The primer coating may be a synthetic phenolic rubber adhesive or an epoxy resin.
GB5736267A 1966-12-20 1967-12-18 Improved Polyurethane Elastomers and their use in Pipe Joint Seals Expired GB1164550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60313266A 1966-12-20 1966-12-20

Publications (1)

Publication Number Publication Date
GB1164550A true GB1164550A (en) 1969-09-17

Family

ID=24414216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5736267A Expired GB1164550A (en) 1966-12-20 1967-12-18 Improved Polyurethane Elastomers and their use in Pipe Joint Seals

Country Status (3)

Country Link
DE (1) DE1720250A1 (en)
FR (1) FR1550566A (en)
GB (1) GB1164550A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790841A (en) * 1971-11-03 1973-04-30 Dow Chemical Co RAPID SETTING POLYURETHANE COMPOSITIONS
US4476258A (en) * 1983-03-30 1984-10-09 National Research Development Corporation Energy absorbing polyurethane compositions

Also Published As

Publication number Publication date
FR1550566A (en) 1968-12-20
DE1720250A1 (en) 1971-06-09

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees