2 results about "Decane" patented technology

A modified dimethylnaphthalene formaldehyde resin is disclosed, which is excellent in heat resistance and useful for thermosetting resins which are used for an electrical insulating material, a resin for resist, a semiconductor sealing resin, an adhesive for printed wiring board, a matrix resin for electrical laminate or prepreg to be mounted in electrical instruments, electronic instruments, industrial instruments, etc., a buildup laminate material, a resin for fiber-reinforced plastic, a sealing resin for liquid crystal display panel, a paint, a variety of coating agents, an adhesive, a laminate for electrical or electronic parts, a molded article, a coating material, a sealing material and the like, the modified dimethylnaphthalene formaldehyde resin being obtained by modifying a polyfunctional dimethylnaphthalene formaldehyde resin having a constituent unit represented by the following general formula [1] in a molecule thereof with at least one member selected from the group consisting of a phenol represented by the following general formula [2], a naphthol represented by the following general formula [3] and a naphthol represented by the following general formula [4] (provided that at least any of the naphthol represented by the general formula [3] or the naphthol represented by the general formula [4] must be included).

The invention discloses a preparation method of a graphene modified polyurethane adhesive, and the method comprises the following steps: uniformly dispersing 0.5-1 part by weight of graphene oxide in10 parts by weight of absolute ethyl alcohol, and reacting with 20 parts by weight of polyisocyanate to obtain a polyisocyanate-graphene oxide mixed solution; reacting 25 parts of triethanolamine, 30parts of sodium hydroxyethyl sulfonate, 33 parts of n-decane and 0.5 part of metallic sodium to obtain sulfonated dihydric alcohol; adding 8 parts of absolute ethyl alcohol, dissolving, and carrying out reduced pressure distillation to obtain sulfonic acid group-containing dihydric alcohol; and carrying out reduced pressure distillation on 60 parts of polyester polyol and 10 parts of the sulfonicacid group-containing dihydric alcohol, reacting with the polyisocyanate-graphene oxide mixed solution, and adding a thickening agent and a defoaming agent into the reactant subjected to chain extension to obtain the graphene modified polyurethane water-based adhesive. The adhesive is high in graphene content, good in dispersity, not prone to agglomeration, environmentally friendly and resistant to bacteria, and the use performance and the storage stability of the adhesive are greatly improved.