US 2026/0042890 A1Published application

Depolymerized lignosulfonate and lignin as extender for phenolic resin

AssigneeWilsonart LLC

InventorMahesh Subramanian

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Abstract

A resin composition for impregnating paper products used in manufacture of high-pressure decorative laminates includes a resin and lignin derivatives.

Claims9

Dependent claims

A resin composition for impregnating paper products used in manufacture of high-pressure decorative laminates, comprising:

a resin;
and
lignin derivatives.

Dependencies are inferred from the claim text.

Facts

Application: 19/365,932Filed 22 Oct 2025
Priority: 3 May 2022
Published: 12 Feb 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

C08J 5/246
Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs: using polymer based synthetic fibres
B32B 29/005
As the main or only constituent of a layer, which is next to another layer of the same or of a different material: next to another layer of paper…
B32B 29/06
Layered products comprising a layer of paper or cardboard: specially treated, e.g. surfaced, parchmentised
C08J 5/245
Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs: using natural fibres

Family

Application63/364,088Us provisional application · filed 3 May 2022
Application18/311,650Division · filed 3 May 2023
Application19/365,932Division
US 12,473,410 B2Related patent
US 2023/0357518 A1Published application
US 2026/0042890 A1This patent

From the US filing history. Foreign family members aren’t listed.

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