Examples of 'urethane prepolymer' in a sentence
Meaning of "urethane prepolymer"
urethane prepolymer: Urethane prepolymer refers to a type of material used in the manufacturing of various products like coatings, adhesives, or foams
How to use "urethane prepolymer" in a sentence
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urethane prepolymer
Urethane prepolymer curing agents are well known.
This reaction resulted in the formation of urethane prepolymer.
The urethane prepolymer may optionally contain a thermoplastic polymer.
Coatings of urethane are generated by mixing a urethane prepolymer with a curative.
A urethane prepolymer having.
One component contains a blend of a urethane prepolymer and aliphatic isocyanate.
The urethane prepolymer exhibits improved compatibility with various tackifiers.
Polyurethane adhesive compositions typically comprise at least one urethane prepolymer.
The hydrophilic urethane prepolymer component is also available in the commercial marketplace.
Another object of the invention is to provide a novel butadiene urethane prepolymer.
The urethane prepolymer and thermoplastic resin in this embodiment are as defined above.
Polyurethane sealant compositions typically comprise at least one urethane prepolymer.
The comparative urethane prepolymer was tested for compatibility in the same manner as above.
A composition according to the present invention comprises a hydroxyl terminated urethane prepolymer.
The polyol employed in the preparation of the urethane prepolymer is preferably a diol or triol.
See also
The urethane prepolymer obtained is reacted with an acid to quatemarize the tertiary amino group.
The tackifiers should have good miscibility with the urethane prepolymer.
The urethane prepolymer is obtained by reacting polyol and a phenylene isocyanate derivative with each other.
From another aspect the present invention provides a blocked urethane prepolymer of improved open time.
A nonionic urethane prepolymer was prepared using the following amounts,.
Then, the isocyanate terminated urethane prepolymer is added.
Urethane prepolymer used in the present invention can be manufactured by well-known conventional methods.
Then, a blocked urethane prepolymer is obtained.
In the present invention, instead of the isocyanate, a urethane prepolymer may be used.
An isocyanate functional urethane prepolymer comprising a reaction product of components comprising,.
Next, polyisocyanate which is used for manufacturing the aforementioned urethane prepolymer is explained below.
The urethane prepolymer can be produced by reacting the above-described polyol with the polyisocyanate.
At least one isocyanate functional urethane prepolymer comprising the reaction product of,.
A moisture reactive polyurethane hot melt adhesive or sealant composition comprising the urethane prepolymer of claim 1.
For preparing the urethane prepolymer in the present invention, PPDI is reacted with polyol.
The scheme used to produce hard-soft-hard urethane prepolymer employed three stages.
Urethane prepolymer ( a ) has an addition-polymerizable ethylenically unsaturated group at both terminals thereof.
The polyurethane according to claim 1, wherein the isocyanate functional urethane prepolymer is prepared from butanediol.
EXAMPLE 5A, A urethane prepolymer and dispersion was prepared using the following amounts,.
A first mixing vessel 36 is provided for the hydrophilic urethane prepolymer.
Generally, in the following examples, the urethane prepolymer compositions are prepared as follows,.
The temperature was maintained at 90 °C for three hours to form the urethane prepolymer.
Optionally 0 to 60 weight percent urethane prepolymer based on the total weight of Part A ;.
Further, water, 576 parts by mass was added to the cationic urethane prepolymer.
EXAMPLE I An isocyanate-functional urethane prepolymer having the structure, was blocked by the following procedure,.
The second component ( part B ) is urethane prepolymer.
A preferred urethane prepolymer is represented by formula ( VII ), wherein,.
The temperature of the contents was raised to 90°C A urethane prepolymer resulted.
For ease of manufacturing, urethane prepolymer (s) may be used.
The reaction was conducted at 100°C for 10 hours while introducing nitrogen gas, giving an urethane prepolymer.
The 36 parts of anhydrous polyisocyanate-terminated urethane prepolymer is added per 64 parts of the gelatin-silver solution.
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Examples of using Prepolymer
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It corresponds to a prepolymer with a high degree of hydrolysis
Prepolymer mixtures may include or consist of oligomers
The maximum amount of prepolymer is not critical
Examples of using Urethane
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This was made from urethane coated nylon
He uses urethane bowling balls almost exclusively
Decorative topcoats based on urethane or epoxy are preferred
