Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a stable dye solution which is used as a direct liquid composition or a base material for the same without requiring a complicated and expensive isolating operation. SOLUTION: The method comprises performing a diazotization reaction at a pH adjusted to have an acidic value by using pure methanesulfonic acid or a mixture of monobasic acids containing at least ≥20 mole%, preferably ≥50 mole%, especially ≥80 mole% methanesulfonic acid. COPYRIGHT: (C)2004,JPO
Abstract:
Woodbase materials comprise wood pieces glued using an adhesive composition comprising an isocyanato-bearing prepolymer (prepolymer P) derived from A) a component A comprising A1) from 25 to 100% by weight of a triglyceride having two or more reactive groups which may react with isocyanate groups in an addition reaction (triglycerides A1), and A2) from 0 to 75% by weight of another compound having one or more reactive groups which may react with isocyanate groups in an addition reaction (component A2), and B) a component B comprising a polyisocyanate if desired, customary auxiliaries and additives if desired, an activator, and if desired, a filler, and adhesive compositions.
Abstract:
Woodbase materials comprise wood pieces glued using an adhesive composition comprising an isocyanato-bearing prepolymer (prepolymer P) derived from A) a component A comprising A1) from 25 to 100% by weight of a triglyceride having two or more reactive groups which may react with isocyanate groups in an addition reaction (triglycerides A1), and A2) from 0 to 75% by weight of another compound having one or more reactive groups which may react with isocyanate groups in an addition reaction (component A2), and B) a component B comprising a polyisocyanate if desired, customary auxiliaries and additives if desired, an activator, and if desired, a filler, and adhesive compositions.
Abstract:
The present invention relates to the use of timber materials for the prod uction of furniture parts, wall coverings, insulation materials and the like , for lowering formaldehyde content in ambient air, where the timber materia ls (i) comprise polyamine as binder or (ii) comprise a binder other than pol yamine and also, in or on the outer layers of the timber material, polyamine , and the molar mass of the polyamine is at least 500 g/mol and the polyamin e has at least 6 primary or secondary amino groups.
Abstract:
Woodbase materials comprise wood pieces glued using an adhesive composition comprising an isocyanato-bearing prepolymer (prepolymer P) derived from A) a component A comprising A1) from 25 to 100% by weight of a triglyceride having two or more reactive groups which may react with isocyanate groups in an addition reaction (triglycerides A1), and A2) from 0 to 75% by weight of another compound having one or more reactive groups which may react with isocyanate groups in an addition reaction (component A2), and B) a component B comprising a polyisocyanate if desired, customary auxiliaries and additives if desired, an activator, and if desired, a filler, and adhesive compositions.
Abstract:
The invention relates to derived timber products consisting of wood parts which are glued by means of an adhesive composition, and such adhesive compositions. Said adhesive composition contains a prepolymer (prepolymer P) carrying isocyanate groups and derived from (A) a constituent A containing (A1) between 25 and 100 wt. % of a triglyceride having a plurality of reactive groups which can react with isocyanate groups in an addition reaction (triglycerides A1), and (A2) between 0 and 75 wt. % of another compound having at least one reactive group which can react with isocyanate groups in an addition reaction (constituent A2); and (B) a constituent B containing a polyisocyanate, optionally standard auxiliary and addition agents, optionally an activator, and optionally a filler material.