摘要:
A hot melt adhesive including a poly(lactide) homopolymer or copolymer with a molecular weight of about 1000 to about 40000 Daltons; and a plasticizer including an ester with about 50% to about 99% bio-based content; wherein the viscosity of the hot melt adhesive composition is about 500 to about 15,000 cPs at 350 F, and wherein the hot melt adhesive composition is substantially free of tackifying resins.
摘要:
A well cement composition includes a hydraulic well cement and multi-component fibers having at least a first polymeric composition and a second polymeric composition. At least a portion of the external surfaces of the multi-component fibers includes the first polymeric composition, and the first polymeric composition includes an ethylene-methacrylic acid or ethylene-acrylic acid copolymer. A method of cementing a subterranean well is also described. The method includes introducing the well cement composition into a wellbore, wherein the well cement composition further comprises water, and forming a cured cement in the wellbore.
摘要:
An article comprising hollow ceramic microspheres and multi-component fibers is disclosed. The multi-component fibers are adhered together, and the hollow ceramic microspheres are adhered to external surfaces of the multi-component fibers. A method of making the article and use of the article for insulation are also disclosed.