PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
Jun 10, 2024
filing date -
Aug 19, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A process for producing a polyurethane or polyisocyanurate construction board, the process comprising of providing an A-side reactant stream that includes an isocyanate-containing compound; providing a B-side reactant stream that includes a polyol, where the B-side reactant steam includes a blowing agent mixture including isopentane and a blowing agent additive that has a Hansen Solubility Parameter (δt) that is greater than 15 MPa0.5; and mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- E04B:GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTIT....
- E04C:STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04D:ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING ....
- B29K:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, ....
- B29L:INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RE....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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