thereof, a is from 2 to 6 and b is from 1 to 300. In the polyesters obtainable therefrom, preferably both monomer diol units —O—(CHR11—)aO— and polymer diol units —(O—(CHR11—)a)bO— are present. The molar ratio of monomer diol units to polymer diol units is preferably from...
Download PDF 5116388 Primary Examiner: PARKS, WILLIAM Attorney, Agent or Firm: MICHAEL E. ZALL (MAYWOOD, NY, US) Parent Case Data: This is a divisional of copending application Ser. No. 383,857, filed on Jul. 21, 1989. Claims:
BMC Oral Health volume 24, Article number: 712 (2024) Cite this article 790 Accesses 1 Citations Metrics details Abstract Objective To evaluate the effects of different polishing techniques and coffee staining on the color stability of four commercially available bleach-shade composite resins, namely...
Download PDFsPeroxidePeracidDyesAzoHydrazoneOxidative bleachingSeveral variously substituted anilines were diazotised and coupled onto 1-hydroxy naphthalene-4-sulphonic acid. The resulting dyes were treated separately with hydrogen peroxide and meta-chloroperbenzoic acid, at 60掳C and pH 9.8, in order...
The rod visual system in its dark-adapted state behaves as a near-ideal light detector1. Psychophysical studies on the reliability of light detection in man2,3, analysis of the dark noise in rod bipolar cells4 and observation of photon-like events in rod
Download PDFs Help Help doi:10.1016/0960-8524(93)90188-HAOXchlorinated compoundsanaerobic treatmentfungusThe effluent discharge from a kraft bleach plant contains large amounts of chlorinated organics. These chlorinated organics, termed chlorolignins, are produced by chlorine addition to residual lignin ...
Download PDF 4713079 Foreign References: GB993583A1965-05-26 GB1054243AJanuary, 1967 Primary Examiner: BARR, JOSEPHINE Attorney, Agent or Firm: JAMES J. FARRELL (EDGEWATER, NJ, US) Claims: What is claimed is: 1. Hard spherical bleaching particles whose composition is an intimately dispersed mix...
Many chlorine bleach materials are known, such as disclosed in Mizuno, W.G., "Dishwashing", Detergency: Theory and Test Methods. Surfactant Science Series, Volume 5, Part III, pages 872-878. Chlorine bleach materials useful in the subject invention compositions include alkali metal hypochlorites...
Alternatively, the reaction mixture can be treated with an equal volume of acetone. Thereby the desired product precipitates from solution. Unreacted p-phenolsulfonate was removed by boiling the crude SPCC in methanol followed by filtration and drying. Typically, 50 g SPCC was added to 500 ml dry...
View Patent Images: Download PDF 4366232 PDF help US Patent References: 4266011 Process for the production of colored photographic images by the silver dye-bleach process 1981-05-05 Jan 430/462 4116664 Fertilizer composition and method of making same 1978-09-26 Jones 564/63 3961957 Dye bleach ...