CA 03015669 2018-08-23 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization 1111111101111011101010111110101111101110111101111011101011111011111011110111111 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, PCT/US2017/023778 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 1-1 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.

La présente invention concerne généralement des composés de réparation de mur tels que des composés de joint, des composés de plâtre à reboucher et analogues utilisés pour réparer des imperfections dans des murs ou remplir des joints entre des panneaux muraux adjacents. En particulier, la présente invention concerne un tel composé de réparation de mur qui comprend un additif de réduction de poussière qui réduit la quantité de poussière en suspension dans l'air produite lorsque le composé durci est poncé et présente en outre des propriétés adhésives améliorées. Ledit additif de réduction de poussière confère également une adhérence aux composés de réparation de mur auxquels il est ajouté, par exemple à un composé de joint. L'additif de réduction de poussière est une poudre préparée à partir de dispersions microstructurées à base de cire protégées de manière colloïdale.