Examples of 'isocyanate functionality' in a sentence
Meaning of "isocyanate functionality"
isocyanate functionality - a term in chemistry referring to the reactive functional group present in isocyanates
How to use "isocyanate functionality" in a sentence
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isocyanate functionality
Preferably the polyurethane has isocyanate functionality.
Titration of isocyanate functionality indicated that no isocyanate was remaining.
Titration revealed no remaining isocyanate functionality.
Isocyanate functionality can be introduced with aromatic or aliphatic diisocyanates.
Polyisocyanates of higher isocyanate functionality may also be used.
Preparation of coreactive waterborne particle containing isocyanate functionality.
The average isocyanate functionality is thus not necessarily an integer.
The crosslinker preferably has no residual isocyanate functionality.
Isocyanate functionality can be incorporated into the clear topcoat composition in a number of ways.
Use may also be made of polyisocyanates with a higher isocyanate functionality.
This results in a polyisocyanate whose isocyanate functionality declines immediately from the time of its manufacture.
The resultant polyurethane is then a prepolymer containing residual isocyanate functionality.
In all cases the molar equivalence of isocyanate functionality was equal to that of amine.
Infrared spectroscopy indicated the presence of a urethane linkage and isocyanate functionality.
These one component compositions have a blocked isocyanate functionality in combination with a film forming polymer.
See also
The mixture was titrated and the result indicated no remaining isocyanate functionality.
Reactive isocyanate functionality of at least about 8 weight percent.
In another preferred embodiment the prepolymer contains silane functionality as well as isocyanate functionality.
An average isocyanate functionality of the prepolymer composition greater than 2 ;.
The average number of isocyanate moieties on the polyisocyanates is known as the isocyanate functionality.
The isocyanate functionality being derived from a separate component or an isocyanate functional polyene ;.
The polyisocyanate is present in stoichiometric excess so that the prepolymer retains isocyanate functionality.
The process of aspect 1 in which the isocyanate functionality is derived from an isocyanate-functional polyene.
A sample was pulled for infrared spectroscopy to confirm the disappearance of the isocyanate functionality.
The isocyanate or latent isocyanate functionality reacts with the " X " group on the silane functional compound.
Water should be excluded from the reaction since it will consume isocyanate functionality.
At the same time, the isocyanate functionality is preferably between 2 and 4.
IR indicates complete reaction of the isocyanate functionality.
Preferably, the number average isocyanate functionality of the organic polyisocyanate is from about 2 to about 3.
As a result, improved handling and stability of the isocyanate functionality is obtained.
Has an isocyanate functionality of at least 2.5 and.
A polyisocyanate is a material having an average isocyanate functionality of at least 2.
An average isocyanate functionality of the MDI-containing composition of from 2 to 2.3.
These prepolymers have a defined average isocyanate functionality greater than 2.
EXAMPLES The following examples ( Examples 1-6 ) show the preparation of non-aqueous dispersion polymers containing isocyanate functionality.
In the case of the aliphatic polyisocyanate, the isocyanate functionality can be as high as 4.0.
Isocyanate functionality is typically 2.0, and in most cases not higher than 2.3 isocyanate groups per molecule.
The isocyanate component ( i ) is required to have an isocyanate functionality of at least two.
By GPC, the average isocyanate functionality of the product was estimated to be 3.2.
These compounds ( or mixtures of compounds ) generally can be characterized by their isocyanate functionality.
Preferably, the polyisocyanate has an isocyanate functionality of 2.5 or more isocyanate groups per molecule.
Primary amine functional copolymers, described above, can be phosgenated to produce isocyanate functionality.
The aliphatic polyisocyanate has an average isocyanate functionality of 2.5 or more isocyanate groups per molecule.
The silane reactive hot melt adhesive composition of claim 1 being free of isocyanate functionality.
In a preferred embodiment, the isocyanate functionality is between about 2 and 2.8.
It will be appreciated, of course, that the isocyanurate resins may contain residual isocyanate functionality.
EXAMPLE 5 A non-aqueous dispersion polymer containing isocyanate functionality was prepared by the following procedure,.
The reaction product according to claim 3, wherein the reaction product comprises residual isocyanate functionality.
In reference to polyurethane prepolymers, average isocyanate functionality is determined according to Wu, U. S.
For grafting sites the polymer had an isocyanate equivalent weight of 961 g polymer solution / eq isocyanate functionality.
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The isocyanate can be aromatic or aliphatic in nature
In certain embodiments the isocyanate reagents are diisocyanates
Isocyanate uretodiones and polyuretonimines are in this category
