Sentence examples for polyether from inspiring English sources

The two liquid precursors of a polyurethane are a multifunctional isocyanate and a prepolymer, a low-molecular-weight polyether or polyester bearing a multiplicity of reactive end-groups such as hydroxyl, amine, or amide.

The rigid segments are normally prepared from MDI and a low-molecular-weight dialcohol such as ethylene glycol or 1,4-butanediol, while the flexible segments are made with MDI and a polyether or polyester glycol.

Penton, a chlorine-containing polyether unaffected by many chemicals, is fabricated into sheets used for lining storage tanks and the like.

Rigid foams are made with PMDI and polyether glycols, along with low-molecular-weight dialcohols to increase the rigidity.

Polyether, any of a class of organic substances prepared by joining together or polymerizing many molecules of simpler compounds (monomers) by establishing ether links between them; polyethers, which may be either chainlike or networklike in molecular structure, comprise an unusually diverse group of polymers.

Epoxy resins, widely used as coatings and adhesives, are prepared by converting liquid polyethers into infusible solids by connecting the long-chain molecules into networks, a process called curing.

Phenoxy resins are polyethers similar to those used in epoxies, but the polymers are of higher molecular weight and do not require curing; they are used mostly as metal primers.

The soft sequences consist of any one of a number of polyesters or polyethers, such as polytetramethylene ether glycol.

Hydroxyl-terminated polyethers are often used to prepare flexible foams, which are used in furniture cushioning.

Crown ethers are specialized cyclic polyethers that surround specific metal ions to form crown-shaped cyclic complexes.

Epoxy, Any of a class of thermosetting polymers, polyethers built up from monomers with an ether group that takes the form of a three-membered epoxide ring.