Patent CA-3015669-A1 (CA)
Inventor: AYAMBEM AMBA
IPC: C09D7/65
Filed: 2017-03-23
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY  (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date                   WO 2017/165625 Al 28 September 2017 (28.09.2017) WIPO I PCT (51) International Patent Classification:    (81) Designated States (unless otherwise indicated, for every E04F 13/08 (2006.01)    C08L 29/04 (2006.01)    kind of national protection available): AE, AG, AL, AM, C09J 191/06 (2006.01)                           AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, (21) International Application Number: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, (22) International Filing Date:    KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, 23 March 2017 (23.03.2017)    MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (25) Filing Language:                      English    RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, (26) Publication Language:                 English    TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: 62/312,209        23 March 2016 (23.03.2016)    US (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (71) Applicant: HENRY COMPANY, LLC [US/US]; 999    GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, North Sepulveda Blvd., Suite 800, El Segundo, CA 90245    TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (US).                                           TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (72) Inventor: AYAMBEM, Amba; 11 Waterview Dr., Glen-DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, moore, PA 19343 (US). SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, (74) Agents: MEHTA, Rakesh, H. et al.; Baker & Hostetler    GW, KM, ML, MR, NE, SN, TD, TG). LLP, 2929 Arch Street, Cira Centre, 12th Floor, Phil adelphia, PA 19104-2891 (US).               Published: ¨                                               with international search report (Art. 21(3)) (54) Title: LOW DUST ADDITIVES COMPRISING EMULSIFIED POWER FOR JOINT COMPOUNDS  AND JOINT COM-= POUNDS THEREOF      paraffin                 INJI\ rnontan            IN" = PVOH 1-1                                               csio0e)j FIG. 1 L.- (57) Abstract: The present invention relates generally to wall repair compounds such as joint compounds, spackling compounds, and the like used to repair imperfections in walls or fill joints between adjacent wallboard panels. Particularly, the present invention el relates to such a wall repair compound comprising a dust reduction additive that reduces the quantity of airborne dust generated rim.) when the hardened compound is sanded and also exhibits improved adhesive properties. The dust reduction additive also imparts ad-hesion to the wall repair compounds to which it is added, for example to a joint compound. The dust reduction additive is a powder prepared from colloidally -protected, wax-based microstructure dispersions.