PT83549A - Process for manufacturing pieces of wood with regular surface by means of expanded polyurethane - Google Patents

Process for manufacturing pieces of wood with regular surface by means of expanded polyurethane

Info

Publication number
PT83549A
PT83549A PT8354986A PT8354986A PT83549A PT 83549 A PT83549 A PT 83549A PT 8354986 A PT8354986 A PT 8354986A PT 8354986 A PT8354986 A PT 8354986A PT 83549 A PT83549 A PT 83549A
Authority
PT
Portugal
Prior art keywords
wood
expanded polyurethane
regular surface
parts
mould
Prior art date
Application number
PT8354986A
Other languages
Portuguese (pt)
Other versions
PT83549B (en
Original Assignee
Joao Joaquim Carvalho Cabral D
Carlos Alberto D Orey Juzarte
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 Joao Joaquim Carvalho Cabral D, Carlos Alberto D Orey Juzarte filed Critical Joao Joaquim Carvalho Cabral D
Priority to PT8354986A priority Critical patent/PT83549B/en
Publication of PT83549A publication Critical patent/PT83549A/en
Publication of PT83549B publication Critical patent/PT83549B/en

Links

Landscapes

  • Dry Formation Of Fiberboard And The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Wood parts with surface regularised with expanded polyurethane are made in an injection machine for rigid polyurethane foam, by inserting a slightly smaller wood piece into the mould cavity and injecting a mixt. of 100 parts of wt. polyol and 105-110 parts aromatic diisocyanate into the mould. After expansion of the polyurethane, the part is removed from the mould.
PT8354986A 1986-10-15 1986-10-15 PROCESS FOR THE MANUFACTURE OF WOOD PIER WITH THE REGULARIZED SURFACE BY EXPANDED POLYURETHANE PT83549B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PT8354986A PT83549B (en) 1986-10-15 1986-10-15 PROCESS FOR THE MANUFACTURE OF WOOD PIER WITH THE REGULARIZED SURFACE BY EXPANDED POLYURETHANE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT8354986A PT83549B (en) 1986-10-15 1986-10-15 PROCESS FOR THE MANUFACTURE OF WOOD PIER WITH THE REGULARIZED SURFACE BY EXPANDED POLYURETHANE

Publications (2)

Publication Number Publication Date
PT83549A true PT83549A (en) 1986-11-01
PT83549B PT83549B (en) 1992-09-30

Family

ID=20083923

Family Applications (1)

Application Number Title Priority Date Filing Date
PT8354986A PT83549B (en) 1986-10-15 1986-10-15 PROCESS FOR THE MANUFACTURE OF WOOD PIER WITH THE REGULARIZED SURFACE BY EXPANDED POLYURETHANE

Country Status (1)

Country Link
PT (1) PT83549B (en)

Also Published As

Publication number Publication date
PT83549B (en) 1992-09-30

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19920320

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19930930