Method of making laminar material having a base of bonded wood particles

A process of producing a laminar material in continuous lengths which comprises:

• a. sequentially and continuously moving a paper web through a loading zone and through a press zone,
• 1. said web consisting essentially of fibrous material impregnated with a synthetic resin composition, being free from sizing and filler, and having a permeability to water vapor of at least 1000 grams per square meter per day;
• b. superimposing on said web in said loading zone loose wood particles intimately mixed with a bonding agent for said particles to form a layer on said web;
• and
• c. subjecting the web and the superimposed layer during said moving through said press zone to a temperature greater than 100.degree. C and to a pressure sufficient to bond said loose particles to each other by said bonding agent in a dense structure and simultaneously to bond said particles to said web by at least one of said bonding agent and said synthetic resin composition.