British Industrial Plastics, Ltd. (BIP) manufactured
amino-plastic moulding powders. They employed Steven Walter
Doherty for many years, eventually as works manager. In 1932 he left their employment and on the 8th of April, 1932, he entered into a leaving agreement with them whereby he undertook, inter alia, not until the 31st of March, 1934, to interest himself in the manufacture or sale of certain chemicals, which included the constituents of a secret process of BIP. On the 22nd of June, 1934, Doherty wrote to another company offering his services to them, On the 27th of June, 1934, a meeting between those two took place, at which Doherty alleged that he had a process of his own for making
urea formaldehyde moulding powder, and stated that he would like a job with this company. The matter was referred to that company's patent agents, who after inquiries reported that this process was patentable, and in due course a Provisional Specification was filed on the 11th of February 1935, in Doherty's name. A Complete Specification was filed on the 19th of July I2, 1935. This company took Doherty into their employ for a year from the first of May, 1935. The Specification was accepted on the 23rd of June, 1936.
Urea-formaldehyde molding compositions have continuously been used successfully to produce numerous articles, as for example, switch plates, radio and television cabinets, clock casings, scale housings,
buttons, cosmetic and jewelry containers, cigarette holders, pipe stems, beads, and the like.
Source for first para:
https://watermark.silverchair.com/5...h0rWjgLA67GOYs_-xMyaW7v1csoijYXEtTwMi_fzhytIQ
Source for second para:
https://patents.google.com/patent/US3223656A/en
Don in SoCal