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📖 Description
This digital document is an article from Rubber World, published by Lippincott & Peto, Inc. on August 1, 1993. The length of the article is 4695 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the supplier: Key 20th-century developments in the history of expanding, or sponge, rubber are reviewed. Patents were issued in 1946, and the Sponge Rubber Products Co launched production of play balls in 1923. The closed cell and closed cell sheet processes evolved during the 1930s and 1940s, when chemical blowing agents were introduced and produced by various US and German firms. Other key innovations included the automotive sponge, the continuous open cell sponge, and nitrile-vinyl foams.
Citation Details Title: Expanding rubber through the years. Author: Donald G. Rowland Publication:Rubber World (Magazine/Journal) Date: August 1, 1993 Publisher: Lippincott & Peto, Inc. Volume: v208 Issue: n5 Page: p27(5)