Patents Assigned to Amethyst Investment Group, Inc.
  • Patent number: 4996997
    Abstract: An improved permanent waving process is disclosed. The improved waving process produces hair styles characterized as bouncier, more full bodied with an open/looser pattern of curls. Furthermore, the waving process of the invention provides for improved humectant properties that results in significantly less maintenance than is typically required when conventional waving processes are used. This waving process is a step-by-step procedure involving the addition of a rearranger, a wrapping lotion, and a neutralizer, in combination with intermittent rinsing. The improved quality and settability of the hair is believed to be attributable to a synergistic effect of an improved rearranging composition and an improved wrapping lotion. The rearranging composition comprises a homogenous mixture of a salt of thioglycolic acid and a homopolymer of methyacrylamidopropyltrimethyl ammonium chloride (MAPTAC).
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: March 5, 1991
    Assignee: Amethyst Investment Group, Inc.
    Inventors: Barry W. Williams, Pamela M. Daniels
  • Patent number: 4933174
    Abstract: A liquid composition comprising a sunscreen agent, a preservative, and a non-ionic detergent, an amphoteric detergent or a mixture thereof in an aqueous vehicle. The sunscreen agent is selected from an aminobenzoic acid, the esters of an aminobenzoic acid, homosalate, cinoxate, and oxybenzone and is present in an amount of not less than about 1 percent by weight of the composition. Applying the composition to the skin leaves an effective amount of the sunscreen agent on the skin even after rinsing to protect the skin against sunburn.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: June 12, 1990
    Assignee: Amethyst Investment Group, Inc.
    Inventor: Joel E. Bernstein