Examples of 'isocyanate index' in a sentence
Meaning of "isocyanate index"
This phrase refers to a measure or index used in chemistry and industry to assess the reactivity or potential hazards of isocyanates. Isocyanates are a group of compounds commonly used in the production of polyurethane foams, coatings, and adhesives. The isocyanate index helps determine the appropriate safety precautions, storage, and handling procedures when working with these chemicals
How to use "isocyanate index" in a sentence
Basic
Advanced
isocyanate index
This resulted in mixed adhesives of varying isocyanate index.
A higher isocyanate index can assist in achieving a higher foam hardness.
The amount of isocyanate was increased to maintain the same isocyanate index.
The isocyanate index was kept constant to facilitate comparison of the various formulations.
Foams of a wide range of densities can also be produced over a wide isocyanate index range.
The isocyanate index may vary over a wide range depending on the foam characteristics desired.
The reactive mixtures used give good processability and moldability over a broad isocyanate index range.
The isocyanate index is given in the Examples for the diisocyante used.
All of the examples produce a foam formed with a low isocyanate index of less than 90.
The isocyanate index is the molar ratio of isocyanate groups to isocyanate-reactive groups.
Example 3 demonstrates an elastomer from a completely linear isocyanate reactive mixture having an isocyanate index of 40.
The isocyanate index may vary between any of these upper and lower values, inclusive.
Indeed, with an identical isocyanate index i . e.
Accordingly, the isocyanate index for PIR / PUR foams is higher than that for PUR foams.
The foams are produced at an isocyanate index of 70.
See also
The isocyanate index may be kept below 100 in order to minimize isocyanate reaction with polyol.
The isocyanate was then added at an average isocyanate index of 350.
Isocyanate index is 100 times the ratio of isocyanate groups to isocyanate-reactive groups in the formulation.
The polyisocyanate is employed in an amount to provide an isocyanate index not exceeding 103.
At an isocyanate index ranging from 2.5 to 4 ; to form a rigid polyisocyanurate foam.
Such catalysts are in particular preferred when the isocyanate index is higher than 500.
The isocyanate index is preferably less than or equal to 120.
It is also preferred that the Isocyanate Index is less than or equal to 120.
The mixing ratio of the liquid components ( X ) and ( Y ) is adjusted by an isocyanate index.
All adhesives were prepared at an isocyanate index in the range of 121 unless otherwise noted.
The organic isocyanate is present in an amount to provide an isocyanate index of 70 to 150.
The isocyanate index in preparing such rigid foams is preferably from 90 to 400.
The reactive system of Claim 1, wherein the isocyanate index is less than or equal to 90.
The isocyanate index is kept constant at 1.15 for all the foam samples prepared.
All samples were prepared at an isocyanate index of 130.
The isocyanate index for forming the foam core may be 180 or more.
Brittleness is a significant problem at an isocyanate index of 1.40.
The isocyanate index in the present invention is within the range of from 70 to 120.
The polyurethane adhesive composition of claim 35 wherein the isocyanate index is from 65 to 85.
As a further illustration, an Isocyanate Index of 100 indicates a 10 percent stoichiometric excess of isocyanato groups.
A method according to claim 9 wherein there is provided an isocyanate index ranging from 50 to 100.
The process of Claim 4, wherein the isocyanate index is less than or equal to 90.
Contacting the premix with the at least one polyisocyanate at an Isocyanate Index from 70 to 200.
A physical blowing agent, wherein the isocyanate index is greater than 250.
A blowing agent component, wherein said reaction mixture has an isocyanate index of greater than 250 ; and.
Pentane, wherein the reaction mixture has an isocyanate index of greater than 350.
The method of Claim 1, wherein said polyurethane layer has an isocyanate index of approximately 1.03.
You'll also be interested in:
Examples of using Index
Show more
The composition of the index is reviewed monthly
This index can be determined by a portable monitor
The aggregate income index is disposable income
Examples of using Isocyanate
Show more
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
