| 摘要 |
The present invention provides thermosetting adhesive/binder compositions comprising a maleated one or more triglycerides of ethylenically unsaturated fatty acids, and a synthetic hardener, e.g. polyol or polyepoxide, the two components in a weight ratio of from 30:70 to 98:2. As formulated, the compositions may comprise from 30 to 98 wt. % of the maleated one or more triglyceride of ethylenically unsaturated fatty acids component containing from 5 to 55 wt. % of maleic anhydride moiety, preferably, 20-35 wt. %. Any of the compositions may be formulated with one or more components cure on heating and, optionally, pressing, and with optional catalyst. The adhesive enables the provision of mechanically sound and low cost ligninocellulosic composites chosen from chipboard, particleboard, fiberboard, glued laminated timber, laminated strand lumber, parallel strand lumber, plywood, laminated veneer lumber and oriented strand board. Composites with other fillers, also, can be made with the invented binder. The invented thermosetting foaming adhesive can be used for manufacturing of packaging or insulating foams. Adhesive composition contains no solvent and water resistant after curing. |
