Abstract: An insulated container for keeping enzymes and biological materials held in microfuge tubes cold for an extended period of time which comprises a container having a central core made of metal (preferably of aluminum), which has receptacles for microfuge tubes and the container also having thermal insulation between the core and the inside surface of the container. The bottom of the container may be recessed to mitigate heat conductance from a laboratory bench top. A lid or cover which fits inside the top of the container is optional.

Abstract: An electronic microbalance shielded against static effects by surrounding the balance pan with a glass or plastic material which has an electrically conducting antistatic surface on the shield.

Abstract: Fibers in non-woven fibrous products are bonded together by a binder comprising a heat-cured product of a water insoluble copolymer of (i) an N-methylolamide which is N-methylolacrylamide or N-methylolmethacrylamide, and (ii) an acrylic acid ester of acrylic acid or methacrylic acid and a C.sub.1 to C.sub.8 alkanol, modified with (iii) a polyalkylene glycol of the formulaHO--(RO).sub.n --Hwherein R is an alkylene group of 2 to 6 carbon atoms and n is a number having an average value of 4 to 50. Preferred acrylic acid esters are ethyl acrylate and butyl acrylate, and the preferred polyalkylene glycol is a polyethylene glycol characterized by a molecular weight in the range of 300 to 2000. The copolymer may also contain units derived from unsaturated aliphatic carboxylic acids. Preferably the copolymer contains units derived from itaconic acid.