Paper substrate comprising modified low molecular weight PVA with functional vinyl groups
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United States of America Patent
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Mar 19, 2024
Grant Date -
Nov 4, 2021
app pub date -
Oct 9, 2018
filing date -
Oct 9, 2018
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Abstract
The invention relates to a method for manufacturing a paper substrate suitable for binding silicone in a catalytic hydrosilation reaction and products thereof, wherein the molecular weight of polyvinyl alcohol is used to control the viscosity of the water-based acetalization reaction, such that a paper substrate may be coated with acetalized polyvinyl alcohol that contains high amount of functional vinyl groups, wherein the functional vinyl groups are part of catenated carbon structures which contain at least 4 carbon atoms and which have an acetal connectivity with the backbone chain of the acetalized polyvinyl alcohol.
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